/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SequenceOfStatements --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=WIDESTAMONGSMALL --traceabstraction.additional.smt.options tolerance=0.6 --traceabstraction.additional.smt.options log-additional-information=true --traceabstraction.additional.smt.options unknown-allowed=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf language data_model -i ../../../trunk/examples/svcomp/recursive-simple/id_o100.c -------------------------------------------------------------------------------- This is Ultimate 0.2.0-0f64333 [2020-10-28 17:25:08,617 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-28 17:25:08,620 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-28 17:25:08,660 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-28 17:25:08,661 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-28 17:25:08,662 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-28 17:25:08,664 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-28 17:25:08,667 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-28 17:25:08,669 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-28 17:25:08,670 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-28 17:25:08,672 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-28 17:25:08,673 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-28 17:25:08,674 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-28 17:25:08,675 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-28 17:25:08,676 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-28 17:25:08,678 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-28 17:25:08,679 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-28 17:25:08,680 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-28 17:25:08,682 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-28 17:25:08,711 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-28 17:25:08,722 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-28 17:25:08,724 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-28 17:25:08,725 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-28 17:25:08,729 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-28 17:25:08,736 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-28 17:25:08,736 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-28 17:25:08,737 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-28 17:25:08,738 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-28 17:25:08,742 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-28 17:25:08,743 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-28 17:25:08,744 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-28 17:25:08,745 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-28 17:25:08,746 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-28 17:25:08,747 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-28 17:25:08,748 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-28 17:25:08,749 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-28 17:25:08,749 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-28 17:25:08,750 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-28 17:25:08,750 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-28 17:25:08,751 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-28 17:25:08,752 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-28 17:25:08,753 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-10-28 17:25:08,780 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-28 17:25:08,780 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-28 17:25:08,782 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-28 17:25:08,782 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-28 17:25:08,783 INFO L138 SettingsManager]: * Use SBE=true [2020-10-28 17:25:08,783 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-28 17:25:08,783 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-28 17:25:08,783 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-28 17:25:08,783 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-28 17:25:08,784 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-28 17:25:08,784 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-28 17:25:08,784 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-28 17:25:08,784 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-28 17:25:08,784 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-28 17:25:08,785 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-28 17:25:08,785 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-28 17:25:08,785 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-28 17:25:08,785 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-28 17:25:08,786 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-28 17:25:08,786 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-28 17:25:08,786 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-28 17:25:08,786 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-28 17:25:08,786 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-28 17:25:08,787 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-28 17:25:08,787 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-28 17:25:08,787 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-28 17:25:08,787 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-28 17:25:08,788 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-28 17:25:08,788 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-28 17:25:08,788 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SequenceOfStatements Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.6;log-additional-information=true;unknown-allowed=true; [2020-10-28 17:25:09,220 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-28 17:25:09,252 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-28 17:25:09,255 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-28 17:25:09,257 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-28 17:25:09,258 INFO L275 PluginConnector]: CDTParser initialized [2020-10-28 17:25:09,259 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/recursive-simple/id_o100.c [2020-10-28 17:25:09,350 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/f9faa5907/6e0df23b30b3483abe0566714f3659ca/FLAG3d666ede7 [2020-10-28 17:25:10,009 INFO L306 CDTParser]: Found 1 translation units. [2020-10-28 17:25:10,010 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/recursive-simple/id_o100.c [2020-10-28 17:25:10,016 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/f9faa5907/6e0df23b30b3483abe0566714f3659ca/FLAG3d666ede7 [2020-10-28 17:25:10,383 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/f9faa5907/6e0df23b30b3483abe0566714f3659ca [2020-10-28 17:25:10,386 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-28 17:25:10,393 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-28 17:25:10,395 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-28 17:25:10,395 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-28 17:25:10,400 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-28 17:25:10,401 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 05:25:10" (1/1) ... [2020-10-28 17:25:10,404 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@380cf24b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 05:25:10, skipping insertion in model container [2020-10-28 17:25:10,405 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 05:25:10" (1/1) ... [2020-10-28 17:25:10,413 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-28 17:25:10,426 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-28 17:25:10,581 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-28 17:25:10,595 INFO L203 MainTranslator]: Completed pre-run [2020-10-28 17:25:10,616 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-28 17:25:10,635 INFO L208 MainTranslator]: Completed translation [2020-10-28 17:25:10,635 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 05:25:10 WrapperNode [2020-10-28 17:25:10,636 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-28 17:25:10,638 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-28 17:25:10,638 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-28 17:25:10,638 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-28 17:25:10,652 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 05:25:10" (1/1) ... [2020-10-28 17:25:10,654 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 05:25:10" (1/1) ... [2020-10-28 17:25:10,666 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 05:25:10" (1/1) ... [2020-10-28 17:25:10,666 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 05:25:10" (1/1) ... [2020-10-28 17:25:10,675 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 05:25:10" (1/1) ... [2020-10-28 17:25:10,679 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 05:25:10" (1/1) ... [2020-10-28 17:25:10,686 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 05:25:10" (1/1) ... [2020-10-28 17:25:10,689 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-28 17:25:10,692 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-28 17:25:10,692 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-28 17:25:10,692 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-28 17:25:10,693 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 05:25:10" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-28 17:25:10,835 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-28 17:25:10,835 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-28 17:25:10,836 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-10-28 17:25:10,836 INFO L138 BoogieDeclarations]: Found implementation of procedure id [2020-10-28 17:25:10,836 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-28 17:25:10,836 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_uint [2020-10-28 17:25:10,836 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-28 17:25:10,837 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-10-28 17:25:10,837 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-10-28 17:25:10,837 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-28 17:25:10,837 INFO L130 BoogieDeclarations]: Found specification of procedure id [2020-10-28 17:25:10,837 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-28 17:25:10,837 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-28 17:25:10,837 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-28 17:25:10,838 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-28 17:25:10,838 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-28 17:25:10,838 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-28 17:25:10,838 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-28 17:25:11,216 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-28 17:25:11,216 INFO L298 CfgBuilder]: Removed 0 assume(true) statements. [2020-10-28 17:25:11,219 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 05:25:11 BoogieIcfgContainer [2020-10-28 17:25:11,219 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-28 17:25:11,224 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-28 17:25:11,224 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-28 17:25:11,228 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-28 17:25:11,229 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.10 05:25:10" (1/3) ... [2020-10-28 17:25:11,230 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@20d052d2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.10 05:25:11, skipping insertion in model container [2020-10-28 17:25:11,230 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 05:25:10" (2/3) ... [2020-10-28 17:25:11,231 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@20d052d2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.10 05:25:11, skipping insertion in model container [2020-10-28 17:25:11,231 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 05:25:11" (3/3) ... [2020-10-28 17:25:11,233 INFO L111 eAbstractionObserver]: Analyzing ICFG id_o100.c [2020-10-28 17:25:11,247 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-28 17:25:11,252 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-28 17:25:11,269 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-28 17:25:11,311 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-28 17:25:11,311 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-28 17:25:11,312 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-28 17:25:11,312 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-28 17:25:11,312 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-28 17:25:11,312 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-28 17:25:11,312 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-28 17:25:11,312 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-28 17:25:11,338 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states. [2020-10-28 17:25:11,347 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-10-28 17:25:11,347 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 17:25:11,348 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-28 17:25:11,348 INFO L429 AbstractCegarLoop]: === Iteration 1 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 17:25:11,357 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 17:25:11,357 INFO L82 PathProgramCache]: Analyzing trace with hash 560135365, now seen corresponding path program 1 times [2020-10-28 17:25:11,367 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 17:25:11,368 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1600994526] [2020-10-28 17:25:11,369 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 17:25:11,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:25:11,640 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:25:11,837 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:25:11,838 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-10-28 17:25:11,838 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:25:11,838 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 262 [2020-10-28 17:25:11,840 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:25:11,841 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:25:11,841 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 17:25:11,841 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 16 [2020-10-28 17:25:11,841 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-28 17:25:11,842 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-28 17:25:11,994 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 17:25:11,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:25:12,002 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:25:12,017 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:25:12,017 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 17:25:12,018 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:25:12,018 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-28 17:25:12,018 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:25:12,018 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:25:12,019 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 17:25:12,019 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:25:12,019 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 17:25:12,019 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 17:25:12,031 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-28 17:25:12,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:25:12,042 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:25:12,060 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:25:12,061 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-28 17:25:12,061 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:25:12,061 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-10-28 17:25:12,062 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:25:12,062 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:25:12,062 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-28 17:25:12,063 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:25:12,063 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-28 17:25:12,063 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 17:25:12,092 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-28 17:25:12,093 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1600994526] [2020-10-28 17:25:12,095 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-28 17:25:12,095 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-28 17:25:12,096 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [977687837] [2020-10-28 17:25:12,102 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-28 17:25:12,103 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 17:25:12,119 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-28 17:25:12,120 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-10-28 17:25:12,122 INFO L87 Difference]: Start difference. First operand 25 states. Second operand 6 states. [2020-10-28 17:25:12,395 WARN L193 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 35 [2020-10-28 17:25:12,520 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 17:25:12,520 INFO L93 Difference]: Finished difference Result 38 states and 42 transitions. [2020-10-28 17:25:12,521 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-28 17:25:12,522 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 15 [2020-10-28 17:25:12,523 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 17:25:12,533 INFO L225 Difference]: With dead ends: 38 [2020-10-28 17:25:12,533 INFO L226 Difference]: Without dead ends: 20 [2020-10-28 17:25:12,537 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2020-10-28 17:25:12,557 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20 states. [2020-10-28 17:25:12,584 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20 to 20. [2020-10-28 17:25:12,585 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2020-10-28 17:25:12,586 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 21 transitions. [2020-10-28 17:25:12,588 INFO L78 Accepts]: Start accepts. Automaton has 20 states and 21 transitions. Word has length 15 [2020-10-28 17:25:12,589 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 17:25:12,589 INFO L481 AbstractCegarLoop]: Abstraction has 20 states and 21 transitions. [2020-10-28 17:25:12,589 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-28 17:25:12,589 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 21 transitions. [2020-10-28 17:25:12,591 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2020-10-28 17:25:12,591 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 17:25:12,592 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-28 17:25:12,592 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-28 17:25:12,592 INFO L429 AbstractCegarLoop]: === Iteration 2 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 17:25:12,593 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 17:25:12,593 INFO L82 PathProgramCache]: Analyzing trace with hash -1295611761, now seen corresponding path program 1 times [2020-10-28 17:25:12,594 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 17:25:12,594 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1800649214] [2020-10-28 17:25:12,594 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 17:25:12,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:25:12,660 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:25:12,876 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:25:12,877 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-10-28 17:25:12,877 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:25:12,877 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 250 [2020-10-28 17:25:12,877 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:25:12,877 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:25:12,878 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-28 17:25:12,878 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 21 [2020-10-28 17:25:12,878 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-28 17:25:12,878 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 17:25:12,964 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 17:25:12,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:25:12,969 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:25:12,982 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:25:12,983 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 17:25:12,983 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:25:12,984 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-28 17:25:12,984 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:25:12,984 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:25:12,984 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 17:25:12,984 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:25:12,985 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 17:25:12,985 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 17:25:12,992 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-28 17:25:13,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:25:13,010 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:25:13,093 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:25:13,093 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-28 17:25:13,094 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:25:13,094 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 90 [2020-10-28 17:25:13,094 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:25:13,095 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:25:13,095 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-28 17:25:13,095 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:25:13,095 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-10-28 17:25:13,096 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 17:25:13,137 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-28 17:25:13,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:25:13,143 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:25:13,152 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:25:13,153 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-28 17:25:13,153 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:25:13,153 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-28 17:25:13,154 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:25:13,154 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:25:13,154 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-28 17:25:13,154 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:25:13,154 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-28 17:25:13,155 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 17:25:13,178 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-10-28 17:25:13,178 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1800649214] [2020-10-28 17:25:13,179 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-28 17:25:13,179 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-10-28 17:25:13,179 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [390651886] [2020-10-28 17:25:13,181 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-28 17:25:13,181 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 17:25:13,182 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-28 17:25:13,183 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2020-10-28 17:25:13,183 INFO L87 Difference]: Start difference. First operand 20 states and 21 transitions. Second operand 8 states. [2020-10-28 17:25:13,539 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 17:25:13,539 INFO L93 Difference]: Finished difference Result 28 states and 29 transitions. [2020-10-28 17:25:13,540 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-28 17:25:13,540 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 21 [2020-10-28 17:25:13,541 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 17:25:13,542 INFO L225 Difference]: With dead ends: 28 [2020-10-28 17:25:13,542 INFO L226 Difference]: Without dead ends: 23 [2020-10-28 17:25:13,543 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=33, Invalid=123, Unknown=0, NotChecked=0, Total=156 [2020-10-28 17:25:13,544 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23 states. [2020-10-28 17:25:13,551 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 23. [2020-10-28 17:25:13,551 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23 states. [2020-10-28 17:25:13,552 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 24 transitions. [2020-10-28 17:25:13,552 INFO L78 Accepts]: Start accepts. Automaton has 23 states and 24 transitions. Word has length 21 [2020-10-28 17:25:13,553 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 17:25:13,553 INFO L481 AbstractCegarLoop]: Abstraction has 23 states and 24 transitions. [2020-10-28 17:25:13,553 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-28 17:25:13,553 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 24 transitions. [2020-10-28 17:25:13,554 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2020-10-28 17:25:13,555 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 17:25:13,555 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-28 17:25:13,555 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-28 17:25:13,555 INFO L429 AbstractCegarLoop]: === Iteration 3 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 17:25:13,556 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 17:25:13,556 INFO L82 PathProgramCache]: Analyzing trace with hash -116387003, now seen corresponding path program 2 times [2020-10-28 17:25:13,557 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 17:25:13,557 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1935797109] [2020-10-28 17:25:13,557 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 17:25:13,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:25:13,584 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:25:13,784 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:25:13,784 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 41 [2020-10-28 17:25:13,784 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:25:13,785 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 209 [2020-10-28 17:25:13,785 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:25:13,785 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:25:13,785 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-28 17:25:13,785 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 26 [2020-10-28 17:25:13,785 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-28 17:25:13,786 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:25:13,862 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 17:25:13,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:25:13,866 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:25:13,872 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:25:13,873 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 17:25:13,873 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:25:13,873 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-28 17:25:13,873 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:25:13,874 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:25:13,874 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 17:25:13,874 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:25:13,874 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 17:25:13,874 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 17:25:13,878 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-28 17:25:13,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:25:13,887 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:25:13,933 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:25:13,933 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-10-28 17:25:13,933 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:25:13,934 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 49 [2020-10-28 17:25:13,934 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:25:13,934 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:25:13,934 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-28 17:25:13,934 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:25:13,935 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-10-28 17:25:13,935 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:25:13,972 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-28 17:25:13,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:25:13,981 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:25:14,015 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:25:14,017 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-28 17:25:14,017 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:25:14,021 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 38 [2020-10-28 17:25:14,021 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:25:14,022 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:25:14,022 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-28 17:25:14,022 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:25:14,022 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-10-28 17:25:14,023 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 17:25:14,070 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-28 17:25:14,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:25:14,076 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:25:14,085 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:25:14,091 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-28 17:25:14,091 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:25:14,092 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-28 17:25:14,092 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:25:14,092 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:25:14,092 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-28 17:25:14,092 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:25:14,093 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-28 17:25:14,093 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 17:25:14,118 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2020-10-28 17:25:14,119 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1935797109] [2020-10-28 17:25:14,119 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-28 17:25:14,119 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2020-10-28 17:25:14,120 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [982466751] [2020-10-28 17:25:14,121 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-28 17:25:14,122 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 17:25:14,122 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-28 17:25:14,123 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2020-10-28 17:25:14,123 INFO L87 Difference]: Start difference. First operand 23 states and 24 transitions. Second operand 10 states. [2020-10-28 17:25:14,506 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 17:25:14,507 INFO L93 Difference]: Finished difference Result 31 states and 32 transitions. [2020-10-28 17:25:14,507 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-28 17:25:14,507 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 27 [2020-10-28 17:25:14,508 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 17:25:14,509 INFO L225 Difference]: With dead ends: 31 [2020-10-28 17:25:14,509 INFO L226 Difference]: Without dead ends: 26 [2020-10-28 17:25:14,510 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=45, Invalid=227, Unknown=0, NotChecked=0, Total=272 [2020-10-28 17:25:14,510 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26 states. [2020-10-28 17:25:14,516 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26 to 26. [2020-10-28 17:25:14,516 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 26 states. [2020-10-28 17:25:14,518 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 27 transitions. [2020-10-28 17:25:14,518 INFO L78 Accepts]: Start accepts. Automaton has 26 states and 27 transitions. Word has length 27 [2020-10-28 17:25:14,518 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 17:25:14,518 INFO L481 AbstractCegarLoop]: Abstraction has 26 states and 27 transitions. [2020-10-28 17:25:14,519 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-28 17:25:14,519 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 27 transitions. [2020-10-28 17:25:14,520 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2020-10-28 17:25:14,520 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 17:25:14,520 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-28 17:25:14,520 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-28 17:25:14,521 INFO L429 AbstractCegarLoop]: === Iteration 4 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 17:25:14,521 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 17:25:14,521 INFO L82 PathProgramCache]: Analyzing trace with hash -738125937, now seen corresponding path program 3 times [2020-10-28 17:25:14,522 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 17:25:14,522 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1746406893] [2020-10-28 17:25:14,522 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 17:25:14,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:25:14,542 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:25:14,755 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:25:14,755 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 49 [2020-10-28 17:25:14,756 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:25:14,756 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 220 [2020-10-28 17:25:14,756 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:25:14,756 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:25:14,756 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-10-28 17:25:14,757 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 31 [2020-10-28 17:25:14,757 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-10-28 17:25:14,757 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 17:25:14,827 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 17:25:14,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:25:14,831 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:25:14,836 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:25:14,836 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 17:25:14,836 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:25:14,837 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-28 17:25:14,837 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:25:14,837 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:25:14,837 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 17:25:14,837 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:25:14,838 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 17:25:14,838 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 17:25:14,841 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-28 17:25:14,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:25:14,851 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:25:14,954 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:25:14,954 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-10-28 17:25:14,955 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:25:14,955 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 106 [2020-10-28 17:25:14,955 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:25:14,955 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:25:14,955 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-10-28 17:25:14,956 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:25:14,956 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 29 [2020-10-28 17:25:14,956 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:25:14,995 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-28 17:25:14,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:25:15,005 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:25:15,090 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:25:15,091 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-10-28 17:25:15,091 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:25:15,091 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 89 [2020-10-28 17:25:15,091 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:25:15,091 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:25:15,092 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-28 17:25:15,092 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:25:15,092 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-10-28 17:25:15,092 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:25:15,144 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-28 17:25:15,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:25:15,152 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:25:15,176 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:25:15,176 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-28 17:25:15,176 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:25:15,176 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 27 [2020-10-28 17:25:15,177 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:25:15,177 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:25:15,177 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-28 17:25:15,177 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:25:15,177 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-10-28 17:25:15,178 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 17:25:15,228 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-28 17:25:15,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:25:15,234 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:25:15,240 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:25:15,240 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-28 17:25:15,241 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:25:15,244 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-28 17:25:15,244 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:25:15,244 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:25:15,245 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-28 17:25:15,245 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:25:15,245 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-28 17:25:15,245 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 17:25:15,286 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2020-10-28 17:25:15,287 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1746406893] [2020-10-28 17:25:15,287 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-28 17:25:15,288 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12] total 12 [2020-10-28 17:25:15,289 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1147737573] [2020-10-28 17:25:15,290 INFO L461 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-10-28 17:25:15,290 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 17:25:15,291 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-10-28 17:25:15,291 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=111, Unknown=0, NotChecked=0, Total=132 [2020-10-28 17:25:15,292 INFO L87 Difference]: Start difference. First operand 26 states and 27 transitions. Second operand 12 states. [2020-10-28 17:25:15,895 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 17:25:15,896 INFO L93 Difference]: Finished difference Result 34 states and 35 transitions. [2020-10-28 17:25:15,896 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-10-28 17:25:15,897 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 33 [2020-10-28 17:25:15,897 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 17:25:15,898 INFO L225 Difference]: With dead ends: 34 [2020-10-28 17:25:15,898 INFO L226 Difference]: Without dead ends: 29 [2020-10-28 17:25:15,899 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=57, Invalid=363, Unknown=0, NotChecked=0, Total=420 [2020-10-28 17:25:15,903 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29 states. [2020-10-28 17:25:15,909 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29 to 29. [2020-10-28 17:25:15,909 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 29 states. [2020-10-28 17:25:15,910 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 30 transitions. [2020-10-28 17:25:15,910 INFO L78 Accepts]: Start accepts. Automaton has 29 states and 30 transitions. Word has length 33 [2020-10-28 17:25:15,911 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 17:25:15,911 INFO L481 AbstractCegarLoop]: Abstraction has 29 states and 30 transitions. [2020-10-28 17:25:15,911 INFO L482 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-10-28 17:25:15,911 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 30 transitions. [2020-10-28 17:25:15,915 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2020-10-28 17:25:15,916 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 17:25:15,916 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-28 17:25:15,916 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-28 17:25:15,916 INFO L429 AbstractCegarLoop]: === Iteration 5 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 17:25:15,918 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 17:25:15,918 INFO L82 PathProgramCache]: Analyzing trace with hash 1342585285, now seen corresponding path program 4 times [2020-10-28 17:25:15,918 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 17:25:15,918 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [586528415] [2020-10-28 17:25:15,918 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 17:25:15,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:25:15,962 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:25:16,328 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:25:16,328 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 57 [2020-10-28 17:25:16,328 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:25:16,329 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 379 [2020-10-28 17:25:16,329 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:25:16,329 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:25:16,330 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-10-28 17:25:16,330 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 36 [2020-10-28 17:25:16,330 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 17 [2020-10-28 17:25:16,330 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 17:25:16,406 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 17:25:16,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:25:16,412 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:25:16,416 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:25:16,416 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 17:25:16,416 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:25:16,416 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-28 17:25:16,417 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:25:16,417 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:25:16,417 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 17:25:16,417 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:25:16,417 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 17:25:16,418 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 17:25:16,422 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-28 17:25:16,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:25:16,448 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:25:16,599 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:25:16,600 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 41 [2020-10-28 17:25:16,600 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:25:16,600 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 156 [2020-10-28 17:25:16,600 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:25:16,600 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:25:16,601 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-10-28 17:25:16,601 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:25:16,601 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 37 [2020-10-28 17:25:16,601 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 17:25:16,643 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-28 17:25:16,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:25:16,657 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:25:16,757 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:25:16,757 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-10-28 17:25:16,758 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:25:16,758 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 106 [2020-10-28 17:25:16,758 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:25:16,758 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:25:16,758 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-10-28 17:25:16,759 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:25:16,759 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 29 [2020-10-28 17:25:16,759 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 17:25:16,802 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-28 17:25:16,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:25:16,817 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:25:16,869 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:25:16,870 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-10-28 17:25:16,871 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:25:16,871 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 58 [2020-10-28 17:25:16,871 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:25:16,871 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:25:16,872 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-28 17:25:16,872 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:25:16,872 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-10-28 17:25:16,872 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 17:25:16,925 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-28 17:25:16,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:25:16,930 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:25:16,957 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:25:16,958 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-28 17:25:16,959 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:25:16,959 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 28 [2020-10-28 17:25:16,959 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:25:16,960 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:25:16,960 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-28 17:25:16,960 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:25:16,960 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-10-28 17:25:16,960 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 17:25:17,007 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-28 17:25:17,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:25:17,012 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:25:17,017 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:25:17,017 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-28 17:25:17,018 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:25:17,018 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-28 17:25:17,018 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:25:17,018 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:25:17,018 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-28 17:25:17,019 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:25:17,019 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-28 17:25:17,019 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 17:25:17,055 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 0 proven. 26 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2020-10-28 17:25:17,056 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [586528415] [2020-10-28 17:25:17,056 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-28 17:25:17,057 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14] total 14 [2020-10-28 17:25:17,057 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1607300295] [2020-10-28 17:25:17,057 INFO L461 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-10-28 17:25:17,058 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 17:25:17,058 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-10-28 17:25:17,059 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=157, Unknown=0, NotChecked=0, Total=182 [2020-10-28 17:25:17,059 INFO L87 Difference]: Start difference. First operand 29 states and 30 transitions. Second operand 14 states. [2020-10-28 17:25:17,919 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 17:25:17,919 INFO L93 Difference]: Finished difference Result 37 states and 38 transitions. [2020-10-28 17:25:17,920 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-10-28 17:25:17,920 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 39 [2020-10-28 17:25:17,921 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 17:25:17,922 INFO L225 Difference]: With dead ends: 37 [2020-10-28 17:25:17,923 INFO L226 Difference]: Without dead ends: 32 [2020-10-28 17:25:17,924 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 55 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=69, Invalid=531, Unknown=0, NotChecked=0, Total=600 [2020-10-28 17:25:17,924 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32 states. [2020-10-28 17:25:17,930 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32 to 32. [2020-10-28 17:25:17,930 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 32 states. [2020-10-28 17:25:17,931 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 33 transitions. [2020-10-28 17:25:17,931 INFO L78 Accepts]: Start accepts. Automaton has 32 states and 33 transitions. Word has length 39 [2020-10-28 17:25:17,932 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 17:25:17,932 INFO L481 AbstractCegarLoop]: Abstraction has 32 states and 33 transitions. [2020-10-28 17:25:17,932 INFO L482 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-10-28 17:25:17,932 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 33 transitions. [2020-10-28 17:25:17,933 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2020-10-28 17:25:17,933 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 17:25:17,934 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-28 17:25:17,934 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-28 17:25:17,934 INFO L429 AbstractCegarLoop]: === Iteration 6 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 17:25:17,934 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 17:25:17,935 INFO L82 PathProgramCache]: Analyzing trace with hash 1660180111, now seen corresponding path program 5 times [2020-10-28 17:25:17,935 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 17:25:17,935 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [504481155] [2020-10-28 17:25:17,935 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 17:25:17,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:25:17,962 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:25:18,354 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:25:18,355 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 65 [2020-10-28 17:25:18,355 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:25:18,355 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 402 [2020-10-28 17:25:18,355 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:25:18,356 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:25:18,356 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14 [2020-10-28 17:25:18,356 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 41 [2020-10-28 17:25:18,356 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 20 [2020-10-28 17:25:18,357 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 17:25:18,454 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 17:25:18,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:25:18,459 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:25:18,465 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:25:18,465 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 17:25:18,465 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:25:18,466 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-28 17:25:18,466 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:25:18,466 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:25:18,466 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 17:25:18,466 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:25:18,467 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 17:25:18,467 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 17:25:18,470 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-28 17:25:18,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:25:18,487 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:25:18,693 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:25:18,693 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 49 [2020-10-28 17:25:18,693 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:25:18,693 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 211 [2020-10-28 17:25:18,694 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:25:18,694 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:25:18,694 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-10-28 17:25:18,694 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:25:18,694 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 45 [2020-10-28 17:25:18,695 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:25:18,732 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-28 17:25:18,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:25:18,748 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:25:18,886 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:25:18,886 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 41 [2020-10-28 17:25:18,886 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:25:18,887 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 143 [2020-10-28 17:25:18,887 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:25:18,887 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:25:18,887 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-10-28 17:25:18,887 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:25:18,888 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 37 [2020-10-28 17:25:18,888 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 17:25:18,933 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-28 17:25:18,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:25:18,962 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:25:19,043 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:25:19,044 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-10-28 17:25:19,044 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:25:19,044 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 84 [2020-10-28 17:25:19,044 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:25:19,044 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:25:19,045 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-10-28 17:25:19,045 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:25:19,045 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 29 [2020-10-28 17:25:19,045 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 17:25:19,093 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-28 17:25:19,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:25:19,100 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:25:19,145 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:25:19,145 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-10-28 17:25:19,146 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:25:19,146 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 47 [2020-10-28 17:25:19,146 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:25:19,146 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:25:19,146 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-28 17:25:19,147 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:25:19,147 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-10-28 17:25:19,147 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 17:25:19,197 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-28 17:25:19,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:25:19,203 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:25:19,225 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:25:19,225 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-28 17:25:19,226 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:25:19,226 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-10-28 17:25:19,226 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:25:19,226 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:25:19,226 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-28 17:25:19,227 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:25:19,227 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-10-28 17:25:19,227 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 17:25:19,278 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-28 17:25:19,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:25:19,282 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:25:19,288 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:25:19,288 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-28 17:25:19,288 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:25:19,289 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-28 17:25:19,289 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:25:19,289 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:25:19,290 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-28 17:25:19,290 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:25:19,290 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-28 17:25:19,291 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 17:25:19,328 INFO L134 CoverageAnalysis]: Checked inductivity of 80 backedges. 0 proven. 40 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2020-10-28 17:25:19,328 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [504481155] [2020-10-28 17:25:19,329 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-28 17:25:19,329 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16] total 16 [2020-10-28 17:25:19,330 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [690734880] [2020-10-28 17:25:19,331 INFO L461 AbstractCegarLoop]: Interpolant automaton has 16 states [2020-10-28 17:25:19,331 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 17:25:19,331 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2020-10-28 17:25:19,332 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=211, Unknown=0, NotChecked=0, Total=240 [2020-10-28 17:25:19,332 INFO L87 Difference]: Start difference. First operand 32 states and 33 transitions. Second operand 16 states. [2020-10-28 17:25:20,225 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 17:25:20,225 INFO L93 Difference]: Finished difference Result 40 states and 41 transitions. [2020-10-28 17:25:20,226 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-10-28 17:25:20,226 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 45 [2020-10-28 17:25:20,226 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 17:25:20,227 INFO L225 Difference]: With dead ends: 40 [2020-10-28 17:25:20,227 INFO L226 Difference]: Without dead ends: 35 [2020-10-28 17:25:20,229 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 78 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=81, Invalid=731, Unknown=0, NotChecked=0, Total=812 [2020-10-28 17:25:20,229 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35 states. [2020-10-28 17:25:20,235 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35 to 35. [2020-10-28 17:25:20,236 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 35 states. [2020-10-28 17:25:20,237 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 36 transitions. [2020-10-28 17:25:20,237 INFO L78 Accepts]: Start accepts. Automaton has 35 states and 36 transitions. Word has length 45 [2020-10-28 17:25:20,238 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 17:25:20,238 INFO L481 AbstractCegarLoop]: Abstraction has 35 states and 36 transitions. [2020-10-28 17:25:20,238 INFO L482 AbstractCegarLoop]: Interpolant automaton has 16 states. [2020-10-28 17:25:20,238 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 36 transitions. [2020-10-28 17:25:20,239 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2020-10-28 17:25:20,240 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 17:25:20,240 INFO L422 BasicCegarLoop]: trace histogram [7, 7, 6, 6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-28 17:25:20,240 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-28 17:25:20,240 INFO L429 AbstractCegarLoop]: === Iteration 7 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 17:25:20,241 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 17:25:20,241 INFO L82 PathProgramCache]: Analyzing trace with hash 1624338501, now seen corresponding path program 6 times [2020-10-28 17:25:20,241 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 17:25:20,241 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1555825052] [2020-10-28 17:25:20,242 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 17:25:20,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:25:20,272 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:25:20,767 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:25:20,768 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 73 [2020-10-28 17:25:20,768 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:25:20,768 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 506 [2020-10-28 17:25:20,768 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:25:20,768 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:25:20,769 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 16 [2020-10-28 17:25:20,769 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 46 [2020-10-28 17:25:20,769 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 23 [2020-10-28 17:25:20,769 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:25:20,854 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 17:25:20,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:25:20,858 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:25:20,861 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:25:20,862 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 17:25:20,862 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:25:20,862 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-28 17:25:20,862 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:25:20,863 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:25:20,863 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 17:25:20,863 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:25:20,863 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 17:25:20,863 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 17:25:20,867 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-28 17:25:20,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:25:20,890 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:25:21,215 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:25:21,215 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 57 [2020-10-28 17:25:21,216 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:25:21,216 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 332 [2020-10-28 17:25:21,216 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:25:21,217 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:25:21,217 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-10-28 17:25:21,217 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:25:21,217 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 53 [2020-10-28 17:25:21,217 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 17:25:21,273 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-28 17:25:21,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:25:21,294 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:25:21,526 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:25:21,526 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 49 [2020-10-28 17:25:21,526 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:25:21,526 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 241 [2020-10-28 17:25:21,527 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:25:21,527 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:25:21,527 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-10-28 17:25:21,527 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:25:21,527 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 45 [2020-10-28 17:25:21,528 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:25:21,571 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-28 17:25:21,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:25:21,584 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:25:21,738 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:25:21,738 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 41 [2020-10-28 17:25:21,739 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:25:21,739 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 158 [2020-10-28 17:25:21,739 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:25:21,739 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:25:21,740 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-10-28 17:25:21,740 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:25:21,740 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 37 [2020-10-28 17:25:21,740 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 17:25:21,794 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-28 17:25:21,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:25:21,805 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:25:21,887 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:25:21,887 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-10-28 17:25:21,887 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:25:21,887 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 85 [2020-10-28 17:25:21,888 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:25:21,888 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:25:21,888 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-10-28 17:25:21,888 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:25:21,889 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 29 [2020-10-28 17:25:21,889 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 17:25:21,938 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-28 17:25:21,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:25:21,946 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:25:21,995 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:25:21,995 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-10-28 17:25:21,995 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:25:21,996 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 51 [2020-10-28 17:25:21,996 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:25:21,996 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:25:21,997 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-28 17:25:21,997 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:25:21,997 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-10-28 17:25:21,997 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 17:25:22,051 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-28 17:25:22,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:25:22,056 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:25:22,076 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:25:22,076 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-28 17:25:22,077 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:25:22,077 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-10-28 17:25:22,077 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:25:22,077 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:25:22,078 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-28 17:25:22,078 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:25:22,078 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-10-28 17:25:22,078 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 17:25:22,150 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-28 17:25:22,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:25:22,154 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:25:22,159 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:25:22,160 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-28 17:25:22,160 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:25:22,160 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-28 17:25:22,161 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:25:22,161 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:25:22,161 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-28 17:25:22,161 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:25:22,162 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-28 17:25:22,162 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 17:25:22,210 INFO L134 CoverageAnalysis]: Checked inductivity of 114 backedges. 0 proven. 57 refuted. 0 times theorem prover too weak. 57 trivial. 0 not checked. [2020-10-28 17:25:22,211 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1555825052] [2020-10-28 17:25:22,211 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-28 17:25:22,211 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18] total 18 [2020-10-28 17:25:22,212 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [405810257] [2020-10-28 17:25:22,212 INFO L461 AbstractCegarLoop]: Interpolant automaton has 18 states [2020-10-28 17:25:22,212 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 17:25:22,213 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2020-10-28 17:25:22,214 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=273, Unknown=0, NotChecked=0, Total=306 [2020-10-28 17:25:22,215 INFO L87 Difference]: Start difference. First operand 35 states and 36 transitions. Second operand 18 states. [2020-10-28 17:25:23,312 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 17:25:23,312 INFO L93 Difference]: Finished difference Result 43 states and 44 transitions. [2020-10-28 17:25:23,313 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2020-10-28 17:25:23,313 INFO L78 Accepts]: Start accepts. Automaton has 18 states. Word has length 51 [2020-10-28 17:25:23,314 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 17:25:23,317 INFO L225 Difference]: With dead ends: 43 [2020-10-28 17:25:23,317 INFO L226 Difference]: Without dead ends: 38 [2020-10-28 17:25:23,319 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 105 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=93, Invalid=963, Unknown=0, NotChecked=0, Total=1056 [2020-10-28 17:25:23,320 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38 states. [2020-10-28 17:25:23,339 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38 to 38. [2020-10-28 17:25:23,339 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 38 states. [2020-10-28 17:25:23,340 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 39 transitions. [2020-10-28 17:25:23,341 INFO L78 Accepts]: Start accepts. Automaton has 38 states and 39 transitions. Word has length 51 [2020-10-28 17:25:23,341 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 17:25:23,341 INFO L481 AbstractCegarLoop]: Abstraction has 38 states and 39 transitions. [2020-10-28 17:25:23,341 INFO L482 AbstractCegarLoop]: Interpolant automaton has 18 states. [2020-10-28 17:25:23,342 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 39 transitions. [2020-10-28 17:25:23,345 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2020-10-28 17:25:23,345 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 17:25:23,345 INFO L422 BasicCegarLoop]: trace histogram [8, 8, 7, 7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-28 17:25:23,345 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-28 17:25:23,346 INFO L429 AbstractCegarLoop]: === Iteration 8 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 17:25:23,346 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 17:25:23,346 INFO L82 PathProgramCache]: Analyzing trace with hash 502547855, now seen corresponding path program 7 times [2020-10-28 17:25:23,346 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 17:25:23,348 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2053930990] [2020-10-28 17:25:23,348 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 17:25:23,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:25:23,380 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:25:23,900 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:25:23,900 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 81 [2020-10-28 17:25:23,901 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:25:23,901 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 530 [2020-10-28 17:25:23,901 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:25:23,901 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:25:23,901 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 18 [2020-10-28 17:25:23,902 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 51 [2020-10-28 17:25:23,902 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 26 [2020-10-28 17:25:23,902 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 17:25:23,983 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 17:25:23,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:25:23,986 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:25:23,990 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:25:23,991 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 17:25:23,991 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:25:23,991 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-28 17:25:23,991 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:25:23,992 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:25:23,992 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 17:25:23,992 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:25:23,992 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 17:25:23,992 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 17:25:23,995 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-28 17:25:24,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:25:24,016 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:25:24,365 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:25:24,366 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 65 [2020-10-28 17:25:24,366 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:25:24,366 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 356 [2020-10-28 17:25:24,366 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:25:24,366 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:25:24,367 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 17 [2020-10-28 17:25:24,367 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:25:24,367 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 61 [2020-10-28 17:25:24,367 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:25:24,404 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-28 17:25:24,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:25:24,421 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:25:24,692 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:25:24,693 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 57 [2020-10-28 17:25:24,693 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:25:24,693 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 277 [2020-10-28 17:25:24,694 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:25:24,694 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:25:24,694 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-10-28 17:25:24,694 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:25:24,694 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 53 [2020-10-28 17:25:24,694 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:25:24,733 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-28 17:25:24,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:25:24,747 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:25:24,897 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:25:24,898 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 49 [2020-10-28 17:25:24,898 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:25:24,898 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 155 [2020-10-28 17:25:24,898 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:25:24,898 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:25:24,899 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-10-28 17:25:24,899 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:25:24,899 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 45 [2020-10-28 17:25:24,899 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 17:25:24,942 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-28 17:25:24,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:25:24,953 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:25:25,067 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:25:25,067 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 41 [2020-10-28 17:25:25,068 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:25:25,068 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 118 [2020-10-28 17:25:25,068 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:25:25,068 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:25:25,068 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-10-28 17:25:25,069 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:25:25,069 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 37 [2020-10-28 17:25:25,069 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 17:25:25,118 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-28 17:25:25,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:25:25,128 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:25:25,189 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:25:25,189 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-10-28 17:25:25,189 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:25:25,189 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 63 [2020-10-28 17:25:25,190 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:25:25,190 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:25:25,190 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-10-28 17:25:25,190 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:25:25,191 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 29 [2020-10-28 17:25:25,191 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 17:25:25,242 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-28 17:25:25,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:25:25,249 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:25:25,282 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:25:25,283 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-10-28 17:25:25,283 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:25:25,283 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 35 [2020-10-28 17:25:25,283 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:25:25,283 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:25:25,284 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-28 17:25:25,284 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:25:25,284 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-10-28 17:25:25,284 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 17:25:25,350 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-28 17:25:25,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:25:25,356 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:25:25,372 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:25:25,372 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-28 17:25:25,373 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:25:25,373 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-10-28 17:25:25,373 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:25:25,373 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:25:25,374 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-28 17:25:25,374 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:25:25,374 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-10-28 17:25:25,374 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 17:25:25,433 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-28 17:25:25,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:25:25,440 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:25:25,447 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:25:25,447 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-28 17:25:25,448 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:25:25,448 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-28 17:25:25,448 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:25:25,448 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:25:25,449 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-28 17:25:25,449 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:25:25,449 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-28 17:25:25,449 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 17:25:25,501 INFO L134 CoverageAnalysis]: Checked inductivity of 154 backedges. 0 proven. 77 refuted. 0 times theorem prover too weak. 77 trivial. 0 not checked. [2020-10-28 17:25:25,502 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2053930990] [2020-10-28 17:25:25,502 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-28 17:25:25,502 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [20] total 20 [2020-10-28 17:25:25,502 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [716381072] [2020-10-28 17:25:25,505 INFO L461 AbstractCegarLoop]: Interpolant automaton has 20 states [2020-10-28 17:25:25,505 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 17:25:25,506 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2020-10-28 17:25:25,506 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=343, Unknown=0, NotChecked=0, Total=380 [2020-10-28 17:25:25,506 INFO L87 Difference]: Start difference. First operand 38 states and 39 transitions. Second operand 20 states. [2020-10-28 17:25:26,883 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 17:25:26,883 INFO L93 Difference]: Finished difference Result 46 states and 47 transitions. [2020-10-28 17:25:26,884 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2020-10-28 17:25:26,884 INFO L78 Accepts]: Start accepts. Automaton has 20 states. Word has length 57 [2020-10-28 17:25:26,884 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 17:25:26,887 INFO L225 Difference]: With dead ends: 46 [2020-10-28 17:25:26,887 INFO L226 Difference]: Without dead ends: 41 [2020-10-28 17:25:26,890 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 136 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=105, Invalid=1227, Unknown=0, NotChecked=0, Total=1332 [2020-10-28 17:25:26,891 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41 states. [2020-10-28 17:25:26,904 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41 to 41. [2020-10-28 17:25:26,904 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 41 states. [2020-10-28 17:25:26,906 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 42 transitions. [2020-10-28 17:25:26,907 INFO L78 Accepts]: Start accepts. Automaton has 41 states and 42 transitions. Word has length 57 [2020-10-28 17:25:26,907 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 17:25:26,907 INFO L481 AbstractCegarLoop]: Abstraction has 41 states and 42 transitions. [2020-10-28 17:25:26,907 INFO L482 AbstractCegarLoop]: Interpolant automaton has 20 states. [2020-10-28 17:25:26,908 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 42 transitions. [2020-10-28 17:25:26,909 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2020-10-28 17:25:26,909 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 17:25:26,909 INFO L422 BasicCegarLoop]: trace histogram [9, 9, 8, 8, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-28 17:25:26,912 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-28 17:25:26,912 INFO L429 AbstractCegarLoop]: === Iteration 9 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 17:25:26,913 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 17:25:26,913 INFO L82 PathProgramCache]: Analyzing trace with hash -1459767611, now seen corresponding path program 8 times [2020-10-28 17:25:26,913 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 17:25:26,914 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [342278633] [2020-10-28 17:25:26,914 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 17:25:26,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:25:26,945 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:25:27,559 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:25:27,559 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 89 [2020-10-28 17:25:27,560 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:25:27,560 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 625 [2020-10-28 17:25:27,560 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:25:27,560 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:25:27,560 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 20 [2020-10-28 17:25:27,561 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 56 [2020-10-28 17:25:27,561 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 29 [2020-10-28 17:25:27,561 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:25:27,633 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 17:25:27,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:25:27,637 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:25:27,641 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:25:27,641 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 17:25:27,641 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:25:27,641 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-28 17:25:27,642 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:25:27,642 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:25:27,642 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 17:25:27,642 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:25:27,642 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 17:25:27,643 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:25:27,645 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-28 17:25:27,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:25:27,668 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:25:28,121 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:25:28,121 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 73 [2020-10-28 17:25:28,121 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:25:28,122 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 460 [2020-10-28 17:25:28,122 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:25:28,122 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:25:28,122 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 19 [2020-10-28 17:25:28,122 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:25:28,123 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 69 [2020-10-28 17:25:28,123 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 17:25:28,161 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-28 17:25:28,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:25:28,180 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:25:28,522 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:25:28,522 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 65 [2020-10-28 17:25:28,523 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:25:28,523 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 349 [2020-10-28 17:25:28,523 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:25:28,523 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:25:28,524 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 17 [2020-10-28 17:25:28,524 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:25:28,524 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 61 [2020-10-28 17:25:28,524 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:25:28,563 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-28 17:25:28,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:25:28,578 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:25:28,815 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:25:28,815 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 57 [2020-10-28 17:25:28,816 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:25:28,816 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 242 [2020-10-28 17:25:28,816 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:25:28,816 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:25:28,816 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-10-28 17:25:28,817 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:25:28,817 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 53 [2020-10-28 17:25:28,817 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 17:25:28,866 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-28 17:25:28,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:25:28,878 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:25:29,027 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:25:29,027 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 49 [2020-10-28 17:25:29,027 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:25:29,028 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 153 [2020-10-28 17:25:29,028 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:25:29,028 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:25:29,028 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-10-28 17:25:29,029 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:25:29,029 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 45 [2020-10-28 17:25:29,029 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 17:25:29,076 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-28 17:25:29,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:25:29,086 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:25:29,175 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:25:29,175 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 41 [2020-10-28 17:25:29,175 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:25:29,175 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 92 [2020-10-28 17:25:29,176 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:25:29,176 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:25:29,176 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-10-28 17:25:29,176 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:25:29,176 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 37 [2020-10-28 17:25:29,177 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 17:25:29,230 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-28 17:25:29,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:25:29,241 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:25:29,303 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:25:29,304 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-10-28 17:25:29,304 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:25:29,304 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 66 [2020-10-28 17:25:29,305 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:25:29,305 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:25:29,305 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-10-28 17:25:29,305 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:25:29,305 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 29 [2020-10-28 17:25:29,306 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 17:25:29,365 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-28 17:25:29,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:25:29,372 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:25:29,408 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:25:29,408 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-10-28 17:25:29,409 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:25:29,409 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 38 [2020-10-28 17:25:29,409 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:25:29,410 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:25:29,410 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-28 17:25:29,410 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:25:29,410 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-10-28 17:25:29,410 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 17:25:29,470 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-28 17:25:29,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:25:29,476 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:25:29,492 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:25:29,493 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-28 17:25:29,493 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:25:29,493 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-10-28 17:25:29,494 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:25:29,494 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:25:29,494 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-28 17:25:29,494 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:25:29,495 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-10-28 17:25:29,495 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 17:25:29,566 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-28 17:25:29,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:25:29,573 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:25:29,577 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:25:29,578 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-28 17:25:29,578 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:25:29,578 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-28 17:25:29,579 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:25:29,579 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:25:29,579 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-28 17:25:29,579 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:25:29,580 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-28 17:25:29,580 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 17:25:29,641 INFO L134 CoverageAnalysis]: Checked inductivity of 200 backedges. 0 proven. 100 refuted. 0 times theorem prover too weak. 100 trivial. 0 not checked. [2020-10-28 17:25:29,642 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [342278633] [2020-10-28 17:25:29,642 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-28 17:25:29,642 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [22] total 22 [2020-10-28 17:25:29,647 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [309327070] [2020-10-28 17:25:29,647 INFO L461 AbstractCegarLoop]: Interpolant automaton has 22 states [2020-10-28 17:25:29,648 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 17:25:29,648 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2020-10-28 17:25:29,650 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=421, Unknown=0, NotChecked=0, Total=462 [2020-10-28 17:25:29,650 INFO L87 Difference]: Start difference. First operand 41 states and 42 transitions. Second operand 22 states. [2020-10-28 17:25:31,194 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 17:25:31,195 INFO L93 Difference]: Finished difference Result 49 states and 50 transitions. [2020-10-28 17:25:31,195 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2020-10-28 17:25:31,195 INFO L78 Accepts]: Start accepts. Automaton has 22 states. Word has length 63 [2020-10-28 17:25:31,196 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 17:25:31,197 INFO L225 Difference]: With dead ends: 49 [2020-10-28 17:25:31,197 INFO L226 Difference]: Without dead ends: 44 [2020-10-28 17:25:31,199 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 171 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=117, Invalid=1523, Unknown=0, NotChecked=0, Total=1640 [2020-10-28 17:25:31,199 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44 states. [2020-10-28 17:25:31,205 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44 to 44. [2020-10-28 17:25:31,206 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 44 states. [2020-10-28 17:25:31,206 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 44 states and 45 transitions. [2020-10-28 17:25:31,207 INFO L78 Accepts]: Start accepts. Automaton has 44 states and 45 transitions. Word has length 63 [2020-10-28 17:25:31,207 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 17:25:31,207 INFO L481 AbstractCegarLoop]: Abstraction has 44 states and 45 transitions. [2020-10-28 17:25:31,207 INFO L482 AbstractCegarLoop]: Interpolant automaton has 22 states. [2020-10-28 17:25:31,207 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 45 transitions. [2020-10-28 17:25:31,208 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2020-10-28 17:25:31,209 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 17:25:31,209 INFO L422 BasicCegarLoop]: trace histogram [10, 10, 9, 9, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-28 17:25:31,209 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-28 17:25:31,209 INFO L429 AbstractCegarLoop]: === Iteration 10 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 17:25:31,210 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 17:25:31,210 INFO L82 PathProgramCache]: Analyzing trace with hash 273998991, now seen corresponding path program 9 times [2020-10-28 17:25:31,210 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 17:25:31,210 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [737013226] [2020-10-28 17:25:31,210 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 17:25:31,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:25:31,240 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:25:31,966 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:25:31,967 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 97 [2020-10-28 17:25:31,967 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:25:31,967 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 737 [2020-10-28 17:25:31,967 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:25:31,967 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:25:31,967 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 22 [2020-10-28 17:25:31,968 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 61 [2020-10-28 17:25:31,968 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 32 [2020-10-28 17:25:31,968 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:25:32,034 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 17:25:32,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:25:32,038 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:25:32,041 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:25:32,042 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 17:25:32,042 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:25:32,042 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-28 17:25:32,042 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:25:32,042 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:25:32,042 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 17:25:32,042 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:25:32,043 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 17:25:32,043 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:25:32,054 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-28 17:25:32,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:25:32,085 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:25:32,588 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:25:32,589 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 81 [2020-10-28 17:25:32,589 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:25:32,589 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 512 [2020-10-28 17:25:32,589 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:25:32,589 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:25:32,590 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 21 [2020-10-28 17:25:32,590 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:25:32,590 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 77 [2020-10-28 17:25:32,590 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:25:32,634 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-28 17:25:32,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:25:32,653 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:25:33,053 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:25:33,053 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 73 [2020-10-28 17:25:33,053 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:25:33,053 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 407 [2020-10-28 17:25:33,054 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:25:33,054 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:25:33,054 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 19 [2020-10-28 17:25:33,054 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:25:33,054 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 69 [2020-10-28 17:25:33,055 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:25:33,100 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-28 17:25:33,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:25:33,117 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:25:33,391 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:25:33,391 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 65 [2020-10-28 17:25:33,391 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:25:33,391 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 280 [2020-10-28 17:25:33,392 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:25:33,392 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:25:33,392 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 17 [2020-10-28 17:25:33,392 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:25:33,392 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 61 [2020-10-28 17:25:33,392 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:25:33,437 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-28 17:25:33,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:25:33,450 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:25:33,634 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:25:33,634 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 57 [2020-10-28 17:25:33,634 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:25:33,635 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 188 [2020-10-28 17:25:33,635 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:25:33,635 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:25:33,635 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-10-28 17:25:33,635 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:25:33,635 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 53 [2020-10-28 17:25:33,636 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:25:33,685 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-28 17:25:33,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:25:33,695 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:25:33,825 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:25:33,826 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 49 [2020-10-28 17:25:33,826 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:25:33,826 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 133 [2020-10-28 17:25:33,826 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:25:33,826 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:25:33,826 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-10-28 17:25:33,827 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:25:33,827 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 45 [2020-10-28 17:25:33,827 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:25:33,877 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-28 17:25:33,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:25:33,885 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:25:33,961 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:25:33,961 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 41 [2020-10-28 17:25:33,961 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:25:33,962 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 79 [2020-10-28 17:25:33,962 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:25:33,962 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:25:33,962 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-10-28 17:25:33,962 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:25:33,963 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 37 [2020-10-28 17:25:33,963 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 17:25:34,015 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-28 17:25:34,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:25:34,022 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:25:34,076 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:25:34,077 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-10-28 17:25:34,077 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:25:34,077 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 56 [2020-10-28 17:25:34,077 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:25:34,077 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:25:34,077 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-10-28 17:25:34,078 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:25:34,078 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 29 [2020-10-28 17:25:34,078 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 17:25:34,135 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-28 17:25:34,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:25:34,141 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:25:34,163 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:25:34,164 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-10-28 17:25:34,164 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:25:34,164 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-10-28 17:25:34,164 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:25:34,164 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:25:34,165 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-28 17:25:34,165 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:25:34,165 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-10-28 17:25:34,165 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 17:25:34,228 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-28 17:25:34,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:25:34,233 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:25:34,246 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:25:34,246 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-28 17:25:34,246 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:25:34,247 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-28 17:25:34,247 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:25:34,247 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:25:34,247 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-28 17:25:34,247 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:25:34,248 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-10-28 17:25:34,248 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 17:25:34,328 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-28 17:25:34,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:25:34,333 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:25:34,337 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:25:34,338 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-28 17:25:34,338 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:25:34,338 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-28 17:25:34,338 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:25:34,339 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:25:34,339 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-28 17:25:34,339 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:25:34,339 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-28 17:25:34,339 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 17:25:34,414 INFO L134 CoverageAnalysis]: Checked inductivity of 252 backedges. 0 proven. 126 refuted. 0 times theorem prover too weak. 126 trivial. 0 not checked. [2020-10-28 17:25:34,415 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [737013226] [2020-10-28 17:25:34,415 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-28 17:25:34,415 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [24] total 24 [2020-10-28 17:25:34,415 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [375119171] [2020-10-28 17:25:34,416 INFO L461 AbstractCegarLoop]: Interpolant automaton has 24 states [2020-10-28 17:25:34,416 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 17:25:34,417 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2020-10-28 17:25:34,417 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=507, Unknown=0, NotChecked=0, Total=552 [2020-10-28 17:25:34,418 INFO L87 Difference]: Start difference. First operand 44 states and 45 transitions. Second operand 24 states. [2020-10-28 17:25:36,253 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 17:25:36,253 INFO L93 Difference]: Finished difference Result 52 states and 53 transitions. [2020-10-28 17:25:36,254 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2020-10-28 17:25:36,254 INFO L78 Accepts]: Start accepts. Automaton has 24 states. Word has length 69 [2020-10-28 17:25:36,255 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 17:25:36,256 INFO L225 Difference]: With dead ends: 52 [2020-10-28 17:25:36,256 INFO L226 Difference]: Without dead ends: 47 [2020-10-28 17:25:36,258 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 210 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=129, Invalid=1851, Unknown=0, NotChecked=0, Total=1980 [2020-10-28 17:25:36,259 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47 states. [2020-10-28 17:25:36,264 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47 to 47. [2020-10-28 17:25:36,265 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 47 states. [2020-10-28 17:25:36,265 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 47 states and 48 transitions. [2020-10-28 17:25:36,265 INFO L78 Accepts]: Start accepts. Automaton has 47 states and 48 transitions. Word has length 69 [2020-10-28 17:25:36,266 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 17:25:36,266 INFO L481 AbstractCegarLoop]: Abstraction has 47 states and 48 transitions. [2020-10-28 17:25:36,266 INFO L482 AbstractCegarLoop]: Interpolant automaton has 24 states. [2020-10-28 17:25:36,266 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states and 48 transitions. [2020-10-28 17:25:36,267 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2020-10-28 17:25:36,268 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 17:25:36,268 INFO L422 BasicCegarLoop]: trace histogram [11, 11, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-28 17:25:36,268 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-28 17:25:36,268 INFO L429 AbstractCegarLoop]: === Iteration 11 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 17:25:36,269 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 17:25:36,269 INFO L82 PathProgramCache]: Analyzing trace with hash -1458107067, now seen corresponding path program 10 times [2020-10-28 17:25:36,269 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 17:25:36,269 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1389431009] [2020-10-28 17:25:36,269 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 17:25:36,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:25:36,309 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:25:37,130 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:25:37,130 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 105 [2020-10-28 17:25:37,130 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:25:37,130 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 832 [2020-10-28 17:25:37,130 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:25:37,131 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:25:37,131 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 24 [2020-10-28 17:25:37,131 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 66 [2020-10-28 17:25:37,131 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 35 [2020-10-28 17:25:37,131 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:25:37,208 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 17:25:37,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:25:37,211 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:25:37,214 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:25:37,214 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 17:25:37,214 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:25:37,214 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-28 17:25:37,214 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:25:37,215 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:25:37,215 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 17:25:37,215 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:25:37,215 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 17:25:37,215 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:25:37,218 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-28 17:25:37,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:25:37,253 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:25:37,845 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:25:37,845 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 89 [2020-10-28 17:25:37,845 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:25:37,846 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 600 [2020-10-28 17:25:37,846 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:25:37,846 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:25:37,846 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 23 [2020-10-28 17:25:37,846 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:25:37,847 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 85 [2020-10-28 17:25:37,847 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:25:37,889 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-28 17:25:37,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:25:37,909 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:25:38,384 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:25:38,384 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 81 [2020-10-28 17:25:38,384 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:25:38,385 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 483 [2020-10-28 17:25:38,385 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:25:38,385 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:25:38,385 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 21 [2020-10-28 17:25:38,385 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:25:38,386 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 77 [2020-10-28 17:25:38,386 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:25:38,429 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-28 17:25:38,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:25:38,446 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:25:38,865 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:25:38,866 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 73 [2020-10-28 17:25:38,866 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:25:38,866 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 425 [2020-10-28 17:25:38,866 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:25:38,866 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:25:38,867 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 19 [2020-10-28 17:25:38,867 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:25:38,867 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 69 [2020-10-28 17:25:38,867 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:25:38,913 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-28 17:25:38,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:25:38,926 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:25:39,186 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:25:39,186 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 65 [2020-10-28 17:25:39,187 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:25:39,187 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 265 [2020-10-28 17:25:39,187 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:25:39,187 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:25:39,187 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 17 [2020-10-28 17:25:39,188 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:25:39,188 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 61 [2020-10-28 17:25:39,188 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:25:39,253 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-28 17:25:39,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:25:39,268 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:25:39,439 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:25:39,440 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 57 [2020-10-28 17:25:39,440 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:25:39,440 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 178 [2020-10-28 17:25:39,440 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:25:39,441 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:25:39,441 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-10-28 17:25:39,441 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:25:39,441 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 53 [2020-10-28 17:25:39,441 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:25:39,494 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-28 17:25:39,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:25:39,504 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:25:39,658 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:25:39,659 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 49 [2020-10-28 17:25:39,659 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:25:39,659 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 157 [2020-10-28 17:25:39,660 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:25:39,660 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:25:39,660 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-10-28 17:25:39,661 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:25:39,661 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 45 [2020-10-28 17:25:39,661 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 17:25:39,735 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-28 17:25:39,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:25:39,747 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:25:39,870 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:25:39,870 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 41 [2020-10-28 17:25:39,871 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:25:39,871 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 127 [2020-10-28 17:25:39,872 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:25:39,872 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:25:39,872 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-10-28 17:25:39,873 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:25:39,873 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 37 [2020-10-28 17:25:39,874 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 17:25:39,963 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-28 17:25:39,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:25:39,974 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:25:40,037 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:25:40,037 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-10-28 17:25:40,037 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:25:40,037 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 66 [2020-10-28 17:25:40,038 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:25:40,038 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:25:40,038 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-10-28 17:25:40,039 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:25:40,039 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 29 [2020-10-28 17:25:40,039 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 17:25:40,110 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-28 17:25:40,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:25:40,117 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:25:40,142 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:25:40,143 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-10-28 17:25:40,143 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:25:40,143 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 27 [2020-10-28 17:25:40,144 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:25:40,144 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:25:40,145 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-28 17:25:40,145 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:25:40,145 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-10-28 17:25:40,145 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 17:25:40,214 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-28 17:25:40,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:25:40,219 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:25:40,231 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:25:40,231 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-28 17:25:40,231 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:25:40,232 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-28 17:25:40,232 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:25:40,232 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:25:40,232 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-28 17:25:40,232 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:25:40,233 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-10-28 17:25:40,233 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 17:25:40,304 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-28 17:25:40,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:25:40,308 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:25:40,311 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:25:40,311 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-28 17:25:40,312 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:25:40,312 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-28 17:25:40,312 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:25:40,312 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:25:40,312 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-28 17:25:40,313 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:25:40,313 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-28 17:25:40,313 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 17:25:40,395 INFO L134 CoverageAnalysis]: Checked inductivity of 310 backedges. 0 proven. 155 refuted. 0 times theorem prover too weak. 155 trivial. 0 not checked. [2020-10-28 17:25:40,395 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1389431009] [2020-10-28 17:25:40,396 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-28 17:25:40,396 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [26] total 26 [2020-10-28 17:25:40,396 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1773766990] [2020-10-28 17:25:40,396 INFO L461 AbstractCegarLoop]: Interpolant automaton has 26 states [2020-10-28 17:25:40,397 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 17:25:40,397 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2020-10-28 17:25:40,398 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=601, Unknown=0, NotChecked=0, Total=650 [2020-10-28 17:25:40,398 INFO L87 Difference]: Start difference. First operand 47 states and 48 transitions. Second operand 26 states. [2020-10-28 17:25:42,557 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 17:25:42,558 INFO L93 Difference]: Finished difference Result 55 states and 56 transitions. [2020-10-28 17:25:42,558 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2020-10-28 17:25:42,558 INFO L78 Accepts]: Start accepts. Automaton has 26 states. Word has length 75 [2020-10-28 17:25:42,559 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 17:25:42,560 INFO L225 Difference]: With dead ends: 55 [2020-10-28 17:25:42,560 INFO L226 Difference]: Without dead ends: 50 [2020-10-28 17:25:42,562 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 72 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 47 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 253 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=141, Invalid=2211, Unknown=0, NotChecked=0, Total=2352 [2020-10-28 17:25:42,562 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50 states. [2020-10-28 17:25:42,569 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50 to 50. [2020-10-28 17:25:42,570 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 50 states. [2020-10-28 17:25:42,570 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 50 states and 51 transitions. [2020-10-28 17:25:42,571 INFO L78 Accepts]: Start accepts. Automaton has 50 states and 51 transitions. Word has length 75 [2020-10-28 17:25:42,571 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 17:25:42,571 INFO L481 AbstractCegarLoop]: Abstraction has 50 states and 51 transitions. [2020-10-28 17:25:42,571 INFO L482 AbstractCegarLoop]: Interpolant automaton has 26 states. [2020-10-28 17:25:42,571 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 51 transitions. [2020-10-28 17:25:42,572 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2020-10-28 17:25:42,573 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 17:25:42,573 INFO L422 BasicCegarLoop]: trace histogram [12, 12, 11, 11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-28 17:25:42,573 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-10-28 17:25:42,573 INFO L429 AbstractCegarLoop]: === Iteration 12 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 17:25:42,573 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 17:25:42,574 INFO L82 PathProgramCache]: Analyzing trace with hash -764791921, now seen corresponding path program 11 times [2020-10-28 17:25:42,574 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 17:25:42,574 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1835836675] [2020-10-28 17:25:42,574 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 17:25:42,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:25:42,609 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:25:43,726 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:25:43,726 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 113 [2020-10-28 17:25:43,727 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:25:43,727 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1130 [2020-10-28 17:25:43,727 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:25:43,727 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:25:43,727 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 26 [2020-10-28 17:25:43,728 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 71 [2020-10-28 17:25:43,728 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 38 [2020-10-28 17:25:43,728 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:25:43,801 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 17:25:43,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:25:43,806 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:25:43,808 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:25:43,809 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 17:25:43,809 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:25:43,809 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-28 17:25:43,809 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:25:43,809 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:25:43,810 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 17:25:43,810 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:25:43,810 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 17:25:43,810 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:25:43,812 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-28 17:25:43,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:25:43,838 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:25:44,566 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:25:44,567 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 97 [2020-10-28 17:25:44,567 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:25:44,567 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 739 [2020-10-28 17:25:44,567 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:25:44,568 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:25:44,568 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 25 [2020-10-28 17:25:44,568 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:25:44,568 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 93 [2020-10-28 17:25:44,568 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:25:44,604 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-28 17:25:44,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:25:44,626 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:25:45,237 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:25:45,237 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 89 [2020-10-28 17:25:45,237 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:25:45,237 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 620 [2020-10-28 17:25:45,237 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:25:45,238 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:25:45,238 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 23 [2020-10-28 17:25:45,238 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:25:45,238 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 85 [2020-10-28 17:25:45,238 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:25:45,281 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-28 17:25:45,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:25:45,300 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:25:45,719 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:25:45,720 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 81 [2020-10-28 17:25:45,720 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:25:45,720 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 427 [2020-10-28 17:25:45,720 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:25:45,720 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:25:45,721 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 21 [2020-10-28 17:25:45,721 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:25:45,721 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 77 [2020-10-28 17:25:45,721 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:25:45,767 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-28 17:25:45,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:25:45,784 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:25:46,094 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:25:46,094 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 73 [2020-10-28 17:25:46,094 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:25:46,094 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 316 [2020-10-28 17:25:46,095 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:25:46,095 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:25:46,095 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 19 [2020-10-28 17:25:46,095 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:25:46,095 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 69 [2020-10-28 17:25:46,095 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:25:46,150 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-28 17:25:46,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:25:46,164 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:25:46,386 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:25:46,386 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 65 [2020-10-28 17:25:46,387 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:25:46,387 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 227 [2020-10-28 17:25:46,387 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:25:46,387 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:25:46,387 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 17 [2020-10-28 17:25:46,387 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:25:46,388 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 61 [2020-10-28 17:25:46,388 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 17:25:46,445 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-28 17:25:46,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:25:46,461 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:25:46,649 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:25:46,649 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 57 [2020-10-28 17:25:46,649 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:25:46,650 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 193 [2020-10-28 17:25:46,650 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:25:46,650 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:25:46,650 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-10-28 17:25:46,650 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:25:46,651 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 53 [2020-10-28 17:25:46,651 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:25:46,710 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-28 17:25:46,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:25:46,722 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:25:46,835 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:25:46,835 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 49 [2020-10-28 17:25:46,840 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:25:46,840 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 117 [2020-10-28 17:25:46,840 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:25:46,840 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:25:46,841 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-10-28 17:25:46,841 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:25:46,841 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 45 [2020-10-28 17:25:46,841 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 17:25:46,917 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-28 17:25:46,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:25:46,927 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:25:47,000 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:25:47,001 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 41 [2020-10-28 17:25:47,001 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:25:47,001 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 76 [2020-10-28 17:25:47,001 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:25:47,002 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:25:47,002 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-10-28 17:25:47,002 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:25:47,002 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 37 [2020-10-28 17:25:47,003 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 17:25:47,083 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-28 17:25:47,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:25:47,090 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:25:47,130 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:25:47,130 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-10-28 17:25:47,130 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:25:47,131 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 41 [2020-10-28 17:25:47,131 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:25:47,131 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:25:47,131 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-10-28 17:25:47,131 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:25:47,132 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 29 [2020-10-28 17:25:47,132 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 17:25:47,213 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-28 17:25:47,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:25:47,218 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:25:47,237 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:25:47,238 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-10-28 17:25:47,238 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:25:47,238 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-10-28 17:25:47,238 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:25:47,239 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:25:47,239 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-28 17:25:47,239 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:25:47,239 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-10-28 17:25:47,239 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 17:25:47,328 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-28 17:25:47,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:25:47,333 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:25:47,344 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:25:47,344 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-28 17:25:47,345 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:25:47,345 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-28 17:25:47,345 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:25:47,345 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:25:47,346 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-28 17:25:47,346 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:25:47,346 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-10-28 17:25:47,346 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 17:25:47,427 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-28 17:25:47,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:25:47,433 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:25:47,446 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:25:47,446 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-28 17:25:47,447 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:25:47,447 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-28 17:25:47,447 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:25:47,447 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:25:47,448 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-28 17:25:47,448 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:25:47,450 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-28 17:25:47,450 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-28 17:25:47,544 INFO L134 CoverageAnalysis]: Checked inductivity of 374 backedges. 0 proven. 187 refuted. 0 times theorem prover too weak. 187 trivial. 0 not checked. [2020-10-28 17:25:47,544 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1835836675] [2020-10-28 17:25:47,544 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-28 17:25:47,544 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [28] total 28 [2020-10-28 17:25:47,544 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [537608302] [2020-10-28 17:25:47,545 INFO L461 AbstractCegarLoop]: Interpolant automaton has 28 states [2020-10-28 17:25:47,545 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 17:25:47,547 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2020-10-28 17:25:47,547 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=703, Unknown=0, NotChecked=0, Total=756 [2020-10-28 17:25:47,547 INFO L87 Difference]: Start difference. First operand 50 states and 51 transitions. Second operand 28 states. [2020-10-28 17:25:49,913 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 17:25:49,913 INFO L93 Difference]: Finished difference Result 58 states and 59 transitions. [2020-10-28 17:25:49,914 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2020-10-28 17:25:49,914 INFO L78 Accepts]: Start accepts. Automaton has 28 states. Word has length 81 [2020-10-28 17:25:49,914 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 17:25:49,915 INFO L225 Difference]: With dead ends: 58 [2020-10-28 17:25:49,915 INFO L226 Difference]: Without dead ends: 53 [2020-10-28 17:25:49,917 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 78 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 300 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=153, Invalid=2603, Unknown=0, NotChecked=0, Total=2756 [2020-10-28 17:25:49,919 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53 states. [2020-10-28 17:25:49,933 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53 to 53. [2020-10-28 17:25:49,933 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 53 states. [2020-10-28 17:25:49,934 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53 states to 53 states and 54 transitions. [2020-10-28 17:25:49,934 INFO L78 Accepts]: Start accepts. Automaton has 53 states and 54 transitions. Word has length 81 [2020-10-28 17:25:49,935 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 17:25:49,935 INFO L481 AbstractCegarLoop]: Abstraction has 53 states and 54 transitions. [2020-10-28 17:25:49,935 INFO L482 AbstractCegarLoop]: Interpolant automaton has 28 states. [2020-10-28 17:25:49,935 INFO L276 IsEmpty]: Start isEmpty. Operand 53 states and 54 transitions. [2020-10-28 17:25:49,939 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2020-10-28 17:25:49,939 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 17:25:49,940 INFO L422 BasicCegarLoop]: trace histogram [13, 13, 12, 12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-28 17:25:49,940 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-10-28 17:25:49,940 INFO L429 AbstractCegarLoop]: === Iteration 13 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 17:25:49,940 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 17:25:49,941 INFO L82 PathProgramCache]: Analyzing trace with hash -1532398651, now seen corresponding path program 12 times [2020-10-28 17:25:49,941 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 17:25:49,946 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [574900628] [2020-10-28 17:25:49,946 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 17:25:49,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:25:49,988 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:25:51,207 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:25:51,207 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 121 [2020-10-28 17:25:51,208 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:25:51,208 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1233 [2020-10-28 17:25:51,208 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:25:51,208 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:25:51,208 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 28 [2020-10-28 17:25:51,208 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 76 [2020-10-28 17:25:51,208 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 41 [2020-10-28 17:25:51,209 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:25:51,281 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 17:25:51,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:25:51,284 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:25:51,287 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:25:51,287 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 17:25:51,288 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:25:51,288 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-28 17:25:51,288 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:25:51,288 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:25:51,288 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 17:25:51,289 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:25:51,289 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 17:25:51,289 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:25:51,291 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-28 17:25:51,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:25:51,322 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:25:52,183 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:25:52,183 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 105 [2020-10-28 17:25:52,183 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:25:52,183 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 873 [2020-10-28 17:25:52,184 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:25:52,184 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:25:52,184 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 27 [2020-10-28 17:25:52,184 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:25:52,184 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 101 [2020-10-28 17:25:52,184 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:25:52,221 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-28 17:25:52,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:25:52,243 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:25:52,811 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:25:52,811 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 97 [2020-10-28 17:25:52,811 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:25:52,811 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 578 [2020-10-28 17:25:52,812 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:25:52,812 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:25:52,812 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 25 [2020-10-28 17:25:52,812 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:25:52,812 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 93 [2020-10-28 17:25:52,812 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:25:52,849 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-28 17:25:52,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:25:52,864 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:25:53,229 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:25:53,229 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 89 [2020-10-28 17:25:53,230 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:25:53,230 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 370 [2020-10-28 17:25:53,230 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:25:53,230 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:25:53,230 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 23 [2020-10-28 17:25:53,230 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:25:53,230 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 85 [2020-10-28 17:25:53,230 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:25:53,272 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-28 17:25:53,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:25:53,290 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:25:53,592 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:25:53,592 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 81 [2020-10-28 17:25:53,593 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:25:53,593 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 308 [2020-10-28 17:25:53,593 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:25:53,593 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:25:53,593 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 21 [2020-10-28 17:25:53,593 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:25:53,593 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 77 [2020-10-28 17:25:53,594 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:25:53,644 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-28 17:25:53,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:25:53,659 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:25:53,863 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:25:53,863 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 73 [2020-10-28 17:25:53,863 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:25:53,863 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 210 [2020-10-28 17:25:53,863 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:25:53,864 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:25:53,864 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 19 [2020-10-28 17:25:53,864 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:25:53,864 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 69 [2020-10-28 17:25:53,864 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:25:53,915 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-28 17:25:53,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:25:53,925 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:25:54,066 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:25:54,066 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 65 [2020-10-28 17:25:54,066 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:25:54,067 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 144 [2020-10-28 17:25:54,067 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:25:54,067 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:25:54,067 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 17 [2020-10-28 17:25:54,067 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:25:54,067 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 61 [2020-10-28 17:25:54,068 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:25:54,124 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-28 17:25:54,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:25:54,136 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:25:54,266 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:25:54,267 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 57 [2020-10-28 17:25:54,267 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:25:54,267 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 134 [2020-10-28 17:25:54,267 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:25:54,267 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:25:54,267 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-10-28 17:25:54,268 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:25:54,268 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 53 [2020-10-28 17:25:54,271 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-10-28 17:25:54,339 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-28 17:25:54,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:25:54,347 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:25:54,426 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:25:54,426 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 49 [2020-10-28 17:25:54,426 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:25:54,426 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 81 [2020-10-28 17:25:54,426 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:25:54,427 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:25:54,427 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-10-28 17:25:54,427 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:25:54,427 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 45 [2020-10-28 17:25:54,427 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 17:25:54,510 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-28 17:25:54,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:25:54,517 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:25:54,574 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:25:54,574 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 41 [2020-10-28 17:25:54,574 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:25:54,574 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 58 [2020-10-28 17:25:54,574 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:25:54,575 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:25:54,575 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-10-28 17:25:54,575 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:25:54,575 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 37 [2020-10-28 17:25:54,575 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:25:54,658 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-28 17:25:54,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:25:54,666 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:25:54,703 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:25:54,703 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-10-28 17:25:54,704 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:25:54,704 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 39 [2020-10-28 17:25:54,704 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:25:54,704 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:25:54,704 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-10-28 17:25:54,704 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:25:54,705 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 29 [2020-10-28 17:25:54,705 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:25:54,790 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-28 17:25:54,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:25:54,796 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:25:54,817 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:25:54,818 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-10-28 17:25:54,818 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:25:54,818 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-10-28 17:25:54,818 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:25:54,819 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:25:54,819 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-28 17:25:54,819 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:25:54,819 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-10-28 17:25:54,819 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 17:25:54,913 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-28 17:25:54,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:25:54,917 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:25:54,927 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:25:54,927 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-28 17:25:54,928 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:25:54,928 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-28 17:25:54,928 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:25:54,928 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:25:54,929 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-28 17:25:54,929 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:25:54,929 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-10-28 17:25:54,929 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 17:25:55,025 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-28 17:25:55,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:25:55,028 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:25:55,031 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:25:55,031 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-28 17:25:55,031 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:25:55,031 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-28 17:25:55,032 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:25:55,032 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:25:55,032 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-28 17:25:55,032 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:25:55,032 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-28 17:25:55,032 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:25:55,111 INFO L134 CoverageAnalysis]: Checked inductivity of 444 backedges. 0 proven. 222 refuted. 0 times theorem prover too weak. 222 trivial. 0 not checked. [2020-10-28 17:25:55,111 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [574900628] [2020-10-28 17:25:55,111 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-28 17:25:55,111 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [30] total 30 [2020-10-28 17:25:55,111 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [600044858] [2020-10-28 17:25:55,112 INFO L461 AbstractCegarLoop]: Interpolant automaton has 30 states [2020-10-28 17:25:55,112 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 17:25:55,112 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2020-10-28 17:25:55,113 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=813, Unknown=0, NotChecked=0, Total=870 [2020-10-28 17:25:55,113 INFO L87 Difference]: Start difference. First operand 53 states and 54 transitions. Second operand 30 states. [2020-10-28 17:25:57,845 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 17:25:57,846 INFO L93 Difference]: Finished difference Result 61 states and 62 transitions. [2020-10-28 17:25:57,846 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2020-10-28 17:25:57,846 INFO L78 Accepts]: Start accepts. Automaton has 30 states. Word has length 87 [2020-10-28 17:25:57,847 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 17:25:57,847 INFO L225 Difference]: With dead ends: 61 [2020-10-28 17:25:57,848 INFO L226 Difference]: Without dead ends: 56 [2020-10-28 17:25:57,850 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 84 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 55 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 351 ImplicationChecksByTransitivity, 2.4s TimeCoverageRelationStatistics Valid=165, Invalid=3027, Unknown=0, NotChecked=0, Total=3192 [2020-10-28 17:25:57,850 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56 states. [2020-10-28 17:25:57,857 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56 to 56. [2020-10-28 17:25:57,857 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 56 states. [2020-10-28 17:25:57,858 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56 states to 56 states and 57 transitions. [2020-10-28 17:25:57,858 INFO L78 Accepts]: Start accepts. Automaton has 56 states and 57 transitions. Word has length 87 [2020-10-28 17:25:57,858 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 17:25:57,858 INFO L481 AbstractCegarLoop]: Abstraction has 56 states and 57 transitions. [2020-10-28 17:25:57,858 INFO L482 AbstractCegarLoop]: Interpolant automaton has 30 states. [2020-10-28 17:25:57,858 INFO L276 IsEmpty]: Start isEmpty. Operand 56 states and 57 transitions. [2020-10-28 17:25:57,860 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2020-10-28 17:25:57,860 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 17:25:57,860 INFO L422 BasicCegarLoop]: trace histogram [14, 14, 13, 13, 13, 13, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-28 17:25:57,860 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-10-28 17:25:57,860 INFO L429 AbstractCegarLoop]: === Iteration 14 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 17:25:57,861 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 17:25:57,861 INFO L82 PathProgramCache]: Analyzing trace with hash -913821041, now seen corresponding path program 13 times [2020-10-28 17:25:57,861 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 17:25:57,861 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1716222840] [2020-10-28 17:25:57,861 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 17:25:57,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:25:57,896 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:25:59,023 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:25:59,023 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 129 [2020-10-28 17:25:59,023 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:25:59,023 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1137 [2020-10-28 17:25:59,023 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:25:59,023 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:25:59,023 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 30 [2020-10-28 17:25:59,023 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 81 [2020-10-28 17:25:59,024 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 44 [2020-10-28 17:25:59,024 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:25:59,100 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 17:25:59,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:25:59,104 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:25:59,106 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:25:59,106 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 17:25:59,107 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:25:59,107 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-28 17:25:59,107 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:25:59,107 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:25:59,107 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 17:25:59,107 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:25:59,107 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 17:25:59,108 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:25:59,110 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-28 17:25:59,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:25:59,136 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:25:59,990 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:25:59,990 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 113 [2020-10-28 17:25:59,990 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:25:59,990 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 863 [2020-10-28 17:25:59,991 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:25:59,991 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:25:59,991 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 29 [2020-10-28 17:25:59,991 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:25:59,991 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 109 [2020-10-28 17:25:59,991 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:26:00,032 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-28 17:26:00,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:26:00,058 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:26:01,131 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:26:01,131 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 105 [2020-10-28 17:26:01,131 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:26:01,131 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1083 [2020-10-28 17:26:01,131 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:26:01,132 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:26:01,132 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 27 [2020-10-28 17:26:01,132 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:26:01,132 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 101 [2020-10-28 17:26:01,132 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:26:01,169 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-28 17:26:01,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:26:01,188 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:26:01,743 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:26:01,744 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 97 [2020-10-28 17:26:01,744 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:26:01,744 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 562 [2020-10-28 17:26:01,744 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:26:01,744 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:26:01,745 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 25 [2020-10-28 17:26:01,745 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:26:01,745 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 93 [2020-10-28 17:26:01,745 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:26:01,790 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-28 17:26:01,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:26:01,808 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:26:02,186 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:26:02,187 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 89 [2020-10-28 17:26:02,187 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:26:02,187 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 385 [2020-10-28 17:26:02,187 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:26:02,188 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:26:02,188 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 23 [2020-10-28 17:26:02,188 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:26:02,188 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 85 [2020-10-28 17:26:02,188 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:26:02,240 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-28 17:26:02,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:26:02,258 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:26:02,509 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:26:02,509 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 81 [2020-10-28 17:26:02,509 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:26:02,509 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 256 [2020-10-28 17:26:02,509 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:26:02,509 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:26:02,509 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 21 [2020-10-28 17:26:02,510 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:26:02,510 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 77 [2020-10-28 17:26:02,510 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:26:02,566 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-28 17:26:02,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:26:02,582 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:26:02,849 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:26:02,849 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 73 [2020-10-28 17:26:02,849 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:26:02,849 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 272 [2020-10-28 17:26:02,849 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:26:02,850 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:26:02,850 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 19 [2020-10-28 17:26:02,850 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:26:02,850 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 69 [2020-10-28 17:26:02,850 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:26:02,915 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-28 17:26:02,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:26:02,928 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:26:03,089 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:26:03,090 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 65 [2020-10-28 17:26:03,090 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:26:03,090 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 165 [2020-10-28 17:26:03,090 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:26:03,090 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:26:03,090 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 17 [2020-10-28 17:26:03,090 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:26:03,091 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 61 [2020-10-28 17:26:03,091 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:26:03,157 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-28 17:26:03,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:26:03,166 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:26:03,286 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:26:03,286 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 57 [2020-10-28 17:26:03,286 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:26:03,286 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 122 [2020-10-28 17:26:03,286 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:26:03,286 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:26:03,287 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-10-28 17:26:03,287 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:26:03,287 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 53 [2020-10-28 17:26:03,287 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:26:03,358 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-28 17:26:03,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:26:03,368 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:26:03,437 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:26:03,437 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 49 [2020-10-28 17:26:03,438 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:26:03,438 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 71 [2020-10-28 17:26:03,438 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:26:03,438 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:26:03,438 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-10-28 17:26:03,439 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:26:03,439 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 45 [2020-10-28 17:26:03,439 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 17:26:03,519 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-28 17:26:03,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:26:03,525 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:26:03,566 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:26:03,567 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 41 [2020-10-28 17:26:03,567 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:26:03,567 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 42 [2020-10-28 17:26:03,567 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:26:03,567 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:26:03,568 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-10-28 17:26:03,568 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:26:03,568 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 37 [2020-10-28 17:26:03,568 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:26:03,652 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-28 17:26:03,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:26:03,657 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:26:03,686 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:26:03,686 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-10-28 17:26:03,687 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:26:03,687 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 30 [2020-10-28 17:26:03,687 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:26:03,687 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:26:03,688 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-10-28 17:26:03,688 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:26:03,688 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 29 [2020-10-28 17:26:03,688 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 17:26:03,778 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-28 17:26:03,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:26:03,783 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:26:03,797 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:26:03,798 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-10-28 17:26:03,798 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:26:03,798 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-28 17:26:03,798 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:26:03,798 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:26:03,798 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-28 17:26:03,799 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:26:03,799 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-10-28 17:26:03,799 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:26:03,895 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-28 17:26:03,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:26:03,898 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:26:03,906 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:26:03,907 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-28 17:26:03,907 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:26:03,907 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-28 17:26:03,907 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:26:03,908 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:26:03,908 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-28 17:26:03,908 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:26:03,908 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-10-28 17:26:03,908 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 17:26:04,005 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-28 17:26:04,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:26:04,009 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:26:04,011 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:26:04,012 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-28 17:26:04,012 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:26:04,012 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-28 17:26:04,012 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:26:04,013 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:26:04,013 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-28 17:26:04,013 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:26:04,013 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-28 17:26:04,013 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:26:04,115 INFO L134 CoverageAnalysis]: Checked inductivity of 520 backedges. 0 proven. 260 refuted. 0 times theorem prover too weak. 260 trivial. 0 not checked. [2020-10-28 17:26:04,115 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1716222840] [2020-10-28 17:26:04,116 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-28 17:26:04,116 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [32] total 32 [2020-10-28 17:26:04,116 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [559710366] [2020-10-28 17:26:04,116 INFO L461 AbstractCegarLoop]: Interpolant automaton has 32 states [2020-10-28 17:26:04,116 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 17:26:04,117 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 32 interpolants. [2020-10-28 17:26:04,117 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=931, Unknown=0, NotChecked=0, Total=992 [2020-10-28 17:26:04,117 INFO L87 Difference]: Start difference. First operand 56 states and 57 transitions. Second operand 32 states. [2020-10-28 17:26:07,108 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 17:26:07,109 INFO L93 Difference]: Finished difference Result 64 states and 65 transitions. [2020-10-28 17:26:07,115 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2020-10-28 17:26:07,116 INFO L78 Accepts]: Start accepts. Automaton has 32 states. Word has length 93 [2020-10-28 17:26:07,116 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 17:26:07,117 INFO L225 Difference]: With dead ends: 64 [2020-10-28 17:26:07,117 INFO L226 Difference]: Without dead ends: 59 [2020-10-28 17:26:07,118 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 90 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 59 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 406 ImplicationChecksByTransitivity, 2.6s TimeCoverageRelationStatistics Valid=177, Invalid=3483, Unknown=0, NotChecked=0, Total=3660 [2020-10-28 17:26:07,119 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 59 states. [2020-10-28 17:26:07,125 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 59 to 59. [2020-10-28 17:26:07,125 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 59 states. [2020-10-28 17:26:07,126 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59 states to 59 states and 60 transitions. [2020-10-28 17:26:07,126 INFO L78 Accepts]: Start accepts. Automaton has 59 states and 60 transitions. Word has length 93 [2020-10-28 17:26:07,127 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 17:26:07,127 INFO L481 AbstractCegarLoop]: Abstraction has 59 states and 60 transitions. [2020-10-28 17:26:07,127 INFO L482 AbstractCegarLoop]: Interpolant automaton has 32 states. [2020-10-28 17:26:07,127 INFO L276 IsEmpty]: Start isEmpty. Operand 59 states and 60 transitions. [2020-10-28 17:26:07,128 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2020-10-28 17:26:07,128 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 17:26:07,129 INFO L422 BasicCegarLoop]: trace histogram [15, 15, 14, 14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-28 17:26:07,129 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2020-10-28 17:26:07,129 INFO L429 AbstractCegarLoop]: === Iteration 15 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 17:26:07,129 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 17:26:07,130 INFO L82 PathProgramCache]: Analyzing trace with hash 1648421445, now seen corresponding path program 14 times [2020-10-28 17:26:07,130 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 17:26:07,130 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1308910785] [2020-10-28 17:26:07,130 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 17:26:07,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:26:07,162 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:26:08,244 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:26:08,245 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 137 [2020-10-28 17:26:08,245 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:26:08,245 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1093 [2020-10-28 17:26:08,245 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:26:08,245 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:26:08,245 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 32 [2020-10-28 17:26:08,245 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 86 [2020-10-28 17:26:08,245 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 47 [2020-10-28 17:26:08,246 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:26:08,332 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 17:26:08,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:26:08,336 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:26:08,340 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:26:08,340 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 17:26:08,340 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:26:08,340 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-28 17:26:08,340 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:26:08,341 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:26:08,341 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 17:26:08,341 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:26:08,341 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 17:26:08,341 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:26:08,343 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-28 17:26:08,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:26:08,379 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:26:09,370 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:26:09,370 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 121 [2020-10-28 17:26:09,370 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:26:09,370 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1004 [2020-10-28 17:26:09,370 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:26:09,370 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:26:09,371 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 31 [2020-10-28 17:26:09,371 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:26:09,371 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 117 [2020-10-28 17:26:09,371 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:26:09,405 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-28 17:26:09,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:26:09,436 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:26:10,110 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:26:10,110 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 113 [2020-10-28 17:26:10,110 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:26:10,110 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 686 [2020-10-28 17:26:10,110 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:26:10,110 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:26:10,110 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 29 [2020-10-28 17:26:10,111 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:26:10,111 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 109 [2020-10-28 17:26:10,111 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:26:10,156 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-28 17:26:10,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:26:10,179 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:26:10,744 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:26:10,745 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 105 [2020-10-28 17:26:10,745 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:26:10,745 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 576 [2020-10-28 17:26:10,745 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:26:10,745 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:26:10,745 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 27 [2020-10-28 17:26:10,745 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:26:10,746 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 101 [2020-10-28 17:26:10,746 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:26:10,791 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-28 17:26:10,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:26:10,809 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:26:11,235 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:26:11,236 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 97 [2020-10-28 17:26:11,236 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:26:11,236 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 432 [2020-10-28 17:26:11,236 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:26:11,236 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:26:11,237 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 25 [2020-10-28 17:26:11,237 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:26:11,237 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 93 [2020-10-28 17:26:11,237 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:26:11,293 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-28 17:26:11,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:26:11,313 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:26:11,679 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:26:11,680 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 89 [2020-10-28 17:26:11,680 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:26:11,680 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 374 [2020-10-28 17:26:11,680 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:26:11,680 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:26:11,680 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 23 [2020-10-28 17:26:11,680 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:26:11,680 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 85 [2020-10-28 17:26:11,681 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:26:11,737 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-28 17:26:11,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:26:11,751 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:26:12,005 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:26:12,006 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 81 [2020-10-28 17:26:12,006 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:26:12,006 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 259 [2020-10-28 17:26:12,006 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:26:12,006 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:26:12,006 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 21 [2020-10-28 17:26:12,007 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:26:12,007 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 77 [2020-10-28 17:26:12,007 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:26:12,069 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-28 17:26:12,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:26:12,081 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:26:12,273 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:26:12,273 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 73 [2020-10-28 17:26:12,274 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:26:12,274 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 196 [2020-10-28 17:26:12,274 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:26:12,274 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:26:12,274 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 19 [2020-10-28 17:26:12,274 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:26:12,274 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 69 [2020-10-28 17:26:12,275 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:26:12,343 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-28 17:26:12,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:26:12,352 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:26:12,494 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:26:12,495 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 65 [2020-10-28 17:26:12,495 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:26:12,495 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 145 [2020-10-28 17:26:12,495 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:26:12,495 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:26:12,495 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 17 [2020-10-28 17:26:12,495 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:26:12,496 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 61 [2020-10-28 17:26:12,496 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:26:12,568 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-28 17:26:12,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:26:12,577 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:26:12,680 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:26:12,680 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 57 [2020-10-28 17:26:12,680 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:26:12,680 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 105 [2020-10-28 17:26:12,681 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:26:12,681 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:26:12,681 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-10-28 17:26:12,681 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:26:12,681 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 53 [2020-10-28 17:26:12,681 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:26:12,761 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-28 17:26:12,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:26:12,769 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:26:12,832 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:26:12,833 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 49 [2020-10-28 17:26:12,833 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:26:12,833 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 65 [2020-10-28 17:26:12,833 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:26:12,833 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:26:12,834 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-10-28 17:26:12,834 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:26:12,834 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 45 [2020-10-28 17:26:12,834 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:26:12,919 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-28 17:26:12,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:26:12,926 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:26:12,977 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:26:12,977 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 41 [2020-10-28 17:26:12,978 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:26:12,978 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 52 [2020-10-28 17:26:12,978 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:26:12,978 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:26:12,979 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-10-28 17:26:12,979 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:26:12,979 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 37 [2020-10-28 17:26:12,979 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 17:26:13,092 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-28 17:26:13,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:26:13,098 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:26:13,123 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:26:13,123 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-10-28 17:26:13,123 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:26:13,124 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 26 [2020-10-28 17:26:13,124 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:26:13,124 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:26:13,124 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-10-28 17:26:13,124 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:26:13,124 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 29 [2020-10-28 17:26:13,124 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:26:13,225 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-28 17:26:13,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:26:13,229 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:26:13,245 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:26:13,246 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-10-28 17:26:13,246 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:26:13,246 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-28 17:26:13,246 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:26:13,247 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:26:13,247 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-28 17:26:13,247 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:26:13,247 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-10-28 17:26:13,247 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:26:13,350 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-28 17:26:13,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:26:13,354 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:26:13,361 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:26:13,361 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-28 17:26:13,361 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:26:13,362 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-28 17:26:13,362 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:26:13,362 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:26:13,362 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-28 17:26:13,362 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:26:13,363 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-10-28 17:26:13,363 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 17:26:13,471 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-28 17:26:13,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:26:13,474 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:26:13,476 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:26:13,477 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-28 17:26:13,477 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:26:13,477 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-28 17:26:13,477 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:26:13,478 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:26:13,478 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-28 17:26:13,478 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:26:13,478 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-28 17:26:13,478 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 17:26:13,584 INFO L134 CoverageAnalysis]: Checked inductivity of 602 backedges. 0 proven. 301 refuted. 0 times theorem prover too weak. 301 trivial. 0 not checked. [2020-10-28 17:26:13,584 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1308910785] [2020-10-28 17:26:13,584 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-28 17:26:13,584 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [34] total 34 [2020-10-28 17:26:13,584 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [625101925] [2020-10-28 17:26:13,585 INFO L461 AbstractCegarLoop]: Interpolant automaton has 34 states [2020-10-28 17:26:13,585 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 17:26:13,585 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2020-10-28 17:26:13,586 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=1057, Unknown=0, NotChecked=0, Total=1122 [2020-10-28 17:26:13,586 INFO L87 Difference]: Start difference. First operand 59 states and 60 transitions. Second operand 34 states. [2020-10-28 17:26:16,968 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 17:26:16,968 INFO L93 Difference]: Finished difference Result 67 states and 68 transitions. [2020-10-28 17:26:16,969 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2020-10-28 17:26:16,969 INFO L78 Accepts]: Start accepts. Automaton has 34 states. Word has length 99 [2020-10-28 17:26:16,970 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 17:26:16,970 INFO L225 Difference]: With dead ends: 67 [2020-10-28 17:26:16,970 INFO L226 Difference]: Without dead ends: 62 [2020-10-28 17:26:16,974 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 96 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 63 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 465 ImplicationChecksByTransitivity, 3.0s TimeCoverageRelationStatistics Valid=189, Invalid=3971, Unknown=0, NotChecked=0, Total=4160 [2020-10-28 17:26:16,974 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62 states. [2020-10-28 17:26:16,978 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62 to 62. [2020-10-28 17:26:16,979 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 62 states. [2020-10-28 17:26:16,979 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62 states to 62 states and 63 transitions. [2020-10-28 17:26:16,980 INFO L78 Accepts]: Start accepts. Automaton has 62 states and 63 transitions. Word has length 99 [2020-10-28 17:26:16,980 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 17:26:16,980 INFO L481 AbstractCegarLoop]: Abstraction has 62 states and 63 transitions. [2020-10-28 17:26:16,980 INFO L482 AbstractCegarLoop]: Interpolant automaton has 34 states. [2020-10-28 17:26:16,980 INFO L276 IsEmpty]: Start isEmpty. Operand 62 states and 63 transitions. [2020-10-28 17:26:16,981 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2020-10-28 17:26:16,981 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 17:26:16,982 INFO L422 BasicCegarLoop]: trace histogram [16, 16, 15, 15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-28 17:26:16,982 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2020-10-28 17:26:16,982 INFO L429 AbstractCegarLoop]: === Iteration 16 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 17:26:16,982 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 17:26:16,983 INFO L82 PathProgramCache]: Analyzing trace with hash 1745019279, now seen corresponding path program 15 times [2020-10-28 17:26:16,983 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 17:26:16,983 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [166519190] [2020-10-28 17:26:16,983 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 17:26:17,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:26:17,021 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:26:18,257 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:26:18,258 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 145 [2020-10-28 17:26:18,258 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:26:18,258 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1249 [2020-10-28 17:26:18,258 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:26:18,258 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:26:18,258 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 34 [2020-10-28 17:26:18,258 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 91 [2020-10-28 17:26:18,258 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 50 [2020-10-28 17:26:18,258 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:26:18,351 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 17:26:18,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:26:18,354 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:26:18,357 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:26:18,357 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 17:26:18,357 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:26:18,358 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-28 17:26:18,358 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:26:18,358 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:26:18,358 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 17:26:18,358 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:26:18,358 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 17:26:18,358 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:26:18,361 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-28 17:26:18,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:26:18,389 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:26:19,385 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:26:19,385 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 129 [2020-10-28 17:26:19,385 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:26:19,385 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1006 [2020-10-28 17:26:19,385 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:26:19,385 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:26:19,385 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 33 [2020-10-28 17:26:19,385 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:26:19,386 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 125 [2020-10-28 17:26:19,386 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:26:19,421 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-28 17:26:19,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:26:19,444 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:26:20,265 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:26:20,265 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 121 [2020-10-28 17:26:20,265 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:26:20,265 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 829 [2020-10-28 17:26:20,266 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:26:20,266 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:26:20,266 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 31 [2020-10-28 17:26:20,266 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:26:20,266 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 117 [2020-10-28 17:26:20,266 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:26:20,304 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-28 17:26:20,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:26:20,325 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:26:20,985 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:26:20,986 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 113 [2020-10-28 17:26:20,986 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:26:20,986 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 668 [2020-10-28 17:26:20,986 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:26:20,986 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:26:20,986 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 29 [2020-10-28 17:26:20,986 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:26:20,987 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 109 [2020-10-28 17:26:20,987 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:26:21,027 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-28 17:26:21,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:26:21,051 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:26:21,618 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:26:21,619 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 105 [2020-10-28 17:26:21,619 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:26:21,619 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 578 [2020-10-28 17:26:21,619 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:26:21,619 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:26:21,619 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 27 [2020-10-28 17:26:21,620 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:26:21,620 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 101 [2020-10-28 17:26:21,620 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:26:21,668 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-28 17:26:21,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:26:21,687 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:26:22,101 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:26:22,101 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 97 [2020-10-28 17:26:22,102 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:26:22,102 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 420 [2020-10-28 17:26:22,102 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:26:22,102 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:26:22,102 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 25 [2020-10-28 17:26:22,102 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:26:22,102 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 93 [2020-10-28 17:26:22,102 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:26:22,155 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-28 17:26:22,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:26:22,170 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:26:22,504 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:26:22,504 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 89 [2020-10-28 17:26:22,504 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:26:22,504 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 339 [2020-10-28 17:26:22,504 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:26:22,505 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:26:22,505 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 23 [2020-10-28 17:26:22,505 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:26:22,505 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 85 [2020-10-28 17:26:22,505 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:26:22,571 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-28 17:26:22,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:26:22,584 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:26:22,827 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:26:22,828 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 81 [2020-10-28 17:26:22,828 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:26:22,828 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 248 [2020-10-28 17:26:22,828 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:26:22,828 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:26:22,828 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 21 [2020-10-28 17:26:22,828 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:26:22,828 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 77 [2020-10-28 17:26:22,829 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:26:22,896 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-28 17:26:22,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:26:22,908 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:26:23,130 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:26:23,130 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 73 [2020-10-28 17:26:23,131 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:26:23,131 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 226 [2020-10-28 17:26:23,131 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:26:23,131 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:26:23,131 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 19 [2020-10-28 17:26:23,131 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:26:23,131 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 69 [2020-10-28 17:26:23,131 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:26:23,205 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-28 17:26:23,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:26:23,215 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:26:23,349 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:26:23,349 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 65 [2020-10-28 17:26:23,350 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:26:23,350 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 137 [2020-10-28 17:26:23,350 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:26:23,350 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:26:23,350 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 17 [2020-10-28 17:26:23,350 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:26:23,350 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 61 [2020-10-28 17:26:23,351 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:26:23,428 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-28 17:26:23,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:26:23,439 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:26:23,592 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:26:23,593 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 57 [2020-10-28 17:26:23,593 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:26:23,593 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 157 [2020-10-28 17:26:23,593 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:26:23,594 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:26:23,594 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-10-28 17:26:23,594 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:26:23,594 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 53 [2020-10-28 17:26:23,594 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 17:26:23,681 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-28 17:26:23,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:26:23,689 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:26:23,756 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:26:23,757 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 49 [2020-10-28 17:26:23,757 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:26:23,757 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 70 [2020-10-28 17:26:23,757 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:26:23,757 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:26:23,758 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-10-28 17:26:23,758 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:26:23,758 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 45 [2020-10-28 17:26:23,758 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:26:23,859 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-28 17:26:23,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:26:23,867 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:26:23,908 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:26:23,909 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 41 [2020-10-28 17:26:23,909 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:26:23,909 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 43 [2020-10-28 17:26:23,909 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:26:23,909 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:26:23,910 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-10-28 17:26:23,910 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:26:23,910 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 37 [2020-10-28 17:26:23,910 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:26:24,004 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-28 17:26:24,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:26:24,011 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:26:24,038 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:26:24,038 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-10-28 17:26:24,038 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:26:24,039 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 29 [2020-10-28 17:26:24,039 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:26:24,039 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:26:24,039 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-10-28 17:26:24,039 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:26:24,039 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 29 [2020-10-28 17:26:24,040 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:26:24,143 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-28 17:26:24,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:26:24,148 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:26:24,162 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:26:24,162 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-10-28 17:26:24,162 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:26:24,162 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-28 17:26:24,163 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:26:24,163 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:26:24,163 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-28 17:26:24,163 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:26:24,163 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-10-28 17:26:24,163 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:26:24,272 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-28 17:26:24,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:26:24,276 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:26:24,283 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:26:24,283 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-28 17:26:24,283 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:26:24,284 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-28 17:26:24,284 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:26:24,284 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:26:24,284 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-28 17:26:24,284 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:26:24,285 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-10-28 17:26:24,285 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:26:24,393 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-28 17:26:24,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:26:24,396 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:26:24,398 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:26:24,398 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-28 17:26:24,398 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:26:24,398 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-28 17:26:24,399 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:26:24,399 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:26:24,399 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-28 17:26:24,399 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:26:24,399 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-28 17:26:24,399 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:26:24,523 INFO L134 CoverageAnalysis]: Checked inductivity of 690 backedges. 0 proven. 345 refuted. 0 times theorem prover too weak. 345 trivial. 0 not checked. [2020-10-28 17:26:24,524 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [166519190] [2020-10-28 17:26:24,524 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-28 17:26:24,524 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [36] total 36 [2020-10-28 17:26:24,524 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [812846555] [2020-10-28 17:26:24,525 INFO L461 AbstractCegarLoop]: Interpolant automaton has 36 states [2020-10-28 17:26:24,525 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 17:26:24,525 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 36 interpolants. [2020-10-28 17:26:24,526 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=69, Invalid=1191, Unknown=0, NotChecked=0, Total=1260 [2020-10-28 17:26:24,526 INFO L87 Difference]: Start difference. First operand 62 states and 63 transitions. Second operand 36 states. [2020-10-28 17:26:28,301 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 17:26:28,301 INFO L93 Difference]: Finished difference Result 70 states and 71 transitions. [2020-10-28 17:26:28,302 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2020-10-28 17:26:28,302 INFO L78 Accepts]: Start accepts. Automaton has 36 states. Word has length 105 [2020-10-28 17:26:28,303 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 17:26:28,303 INFO L225 Difference]: With dead ends: 70 [2020-10-28 17:26:28,303 INFO L226 Difference]: Without dead ends: 65 [2020-10-28 17:26:28,305 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 102 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 67 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 528 ImplicationChecksByTransitivity, 3.3s TimeCoverageRelationStatistics Valid=201, Invalid=4491, Unknown=0, NotChecked=0, Total=4692 [2020-10-28 17:26:28,306 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 65 states. [2020-10-28 17:26:28,311 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 65 to 65. [2020-10-28 17:26:28,311 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 65 states. [2020-10-28 17:26:28,312 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 65 states to 65 states and 66 transitions. [2020-10-28 17:26:28,312 INFO L78 Accepts]: Start accepts. Automaton has 65 states and 66 transitions. Word has length 105 [2020-10-28 17:26:28,312 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 17:26:28,312 INFO L481 AbstractCegarLoop]: Abstraction has 65 states and 66 transitions. [2020-10-28 17:26:28,313 INFO L482 AbstractCegarLoop]: Interpolant automaton has 36 states. [2020-10-28 17:26:28,313 INFO L276 IsEmpty]: Start isEmpty. Operand 65 states and 66 transitions. [2020-10-28 17:26:28,314 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2020-10-28 17:26:28,314 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 17:26:28,314 INFO L422 BasicCegarLoop]: trace histogram [17, 17, 16, 16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-28 17:26:28,314 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2020-10-28 17:26:28,315 INFO L429 AbstractCegarLoop]: === Iteration 17 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 17:26:28,315 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 17:26:28,315 INFO L82 PathProgramCache]: Analyzing trace with hash -345411387, now seen corresponding path program 16 times [2020-10-28 17:26:28,315 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 17:26:28,316 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1339391680] [2020-10-28 17:26:28,316 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 17:26:28,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:26:28,353 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:26:29,812 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:26:29,812 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 153 [2020-10-28 17:26:29,812 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:26:29,812 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1472 [2020-10-28 17:26:29,812 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:26:29,813 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:26:29,813 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 36 [2020-10-28 17:26:29,813 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 96 [2020-10-28 17:26:29,813 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 53 [2020-10-28 17:26:29,813 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:26:29,885 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 17:26:29,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:26:29,888 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:26:29,890 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:26:29,890 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 17:26:29,890 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:26:29,891 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-28 17:26:29,891 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:26:29,891 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:26:29,891 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 17:26:29,891 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:26:29,891 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 17:26:29,891 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:26:29,893 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-28 17:26:29,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:26:29,917 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:26:31,095 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:26:31,095 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 137 [2020-10-28 17:26:31,095 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:26:31,095 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1188 [2020-10-28 17:26:31,095 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:26:31,095 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:26:31,096 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 35 [2020-10-28 17:26:31,096 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:26:31,096 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 133 [2020-10-28 17:26:31,096 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:26:31,129 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-28 17:26:31,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:26:31,154 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:26:32,135 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:26:32,135 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 129 [2020-10-28 17:26:32,135 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:26:32,135 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 990 [2020-10-28 17:26:32,135 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:26:32,135 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:26:32,135 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 33 [2020-10-28 17:26:32,136 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:26:32,136 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 125 [2020-10-28 17:26:32,136 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:26:32,174 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-28 17:26:32,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:26:32,200 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:26:33,016 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:26:33,016 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 121 [2020-10-28 17:26:33,017 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:26:33,017 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 824 [2020-10-28 17:26:33,017 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:26:33,017 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:26:33,017 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 31 [2020-10-28 17:26:33,017 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:26:33,017 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 117 [2020-10-28 17:26:33,017 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:26:33,062 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-28 17:26:33,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:26:33,083 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:26:33,743 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:26:33,743 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 113 [2020-10-28 17:26:33,743 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:26:33,744 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 668 [2020-10-28 17:26:33,744 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:26:33,744 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:26:33,744 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 29 [2020-10-28 17:26:33,744 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:26:33,744 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 109 [2020-10-28 17:26:33,744 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:26:33,798 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-28 17:26:33,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:26:33,817 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:26:34,364 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:26:34,364 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 105 [2020-10-28 17:26:34,364 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:26:34,365 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 554 [2020-10-28 17:26:34,365 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:26:34,365 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:26:34,365 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 27 [2020-10-28 17:26:34,365 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:26:34,365 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 101 [2020-10-28 17:26:34,365 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:26:34,430 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-28 17:26:34,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:26:34,448 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:26:34,871 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:26:34,871 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 97 [2020-10-28 17:26:34,872 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:26:34,872 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 429 [2020-10-28 17:26:34,872 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:26:34,872 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:26:34,872 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 25 [2020-10-28 17:26:34,872 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:26:34,872 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 93 [2020-10-28 17:26:34,872 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:26:34,940 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-28 17:26:34,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:26:34,955 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:26:35,285 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:26:35,285 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 89 [2020-10-28 17:26:35,285 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:26:35,285 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 335 [2020-10-28 17:26:35,286 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:26:35,286 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:26:35,286 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 23 [2020-10-28 17:26:35,286 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:26:35,286 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 85 [2020-10-28 17:26:35,286 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:26:35,356 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-28 17:26:35,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:26:35,368 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:26:35,693 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:26:35,693 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 81 [2020-10-28 17:26:35,693 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:26:35,693 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 328 [2020-10-28 17:26:35,693 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:26:35,694 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:26:35,694 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 21 [2020-10-28 17:26:35,694 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:26:35,694 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 77 [2020-10-28 17:26:35,694 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:26:35,769 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-28 17:26:35,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:26:35,781 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:26:35,985 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:26:35,985 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 73 [2020-10-28 17:26:35,985 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:26:35,985 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 207 [2020-10-28 17:26:35,986 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:26:35,986 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:26:35,986 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 19 [2020-10-28 17:26:35,986 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:26:35,986 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 69 [2020-10-28 17:26:35,986 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:26:36,067 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-28 17:26:36,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:26:36,079 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:26:36,212 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:26:36,213 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 65 [2020-10-28 17:26:36,213 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:26:36,213 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 138 [2020-10-28 17:26:36,213 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:26:36,213 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:26:36,214 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 17 [2020-10-28 17:26:36,214 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:26:36,214 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 61 [2020-10-28 17:26:36,214 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 17:26:36,295 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-28 17:26:36,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:26:36,304 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:26:36,407 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:26:36,408 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 57 [2020-10-28 17:26:36,408 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:26:36,408 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 106 [2020-10-28 17:26:36,408 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:26:36,408 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:26:36,408 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-10-28 17:26:36,408 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:26:36,409 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 53 [2020-10-28 17:26:36,409 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:26:36,504 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-28 17:26:36,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:26:36,512 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:26:36,578 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:26:36,578 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 49 [2020-10-28 17:26:36,578 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:26:36,578 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 68 [2020-10-28 17:26:36,579 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:26:36,579 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:26:36,579 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-10-28 17:26:36,579 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:26:36,579 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 45 [2020-10-28 17:26:36,579 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:26:36,678 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-28 17:26:36,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:26:36,685 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:26:36,726 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:26:36,727 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 41 [2020-10-28 17:26:36,727 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:26:36,727 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 43 [2020-10-28 17:26:36,727 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:26:36,727 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:26:36,728 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-10-28 17:26:36,728 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:26:36,728 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 37 [2020-10-28 17:26:36,728 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:26:36,833 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-28 17:26:36,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:26:36,839 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:26:36,871 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:26:36,871 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-10-28 17:26:36,871 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:26:36,872 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 33 [2020-10-28 17:26:36,872 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:26:36,872 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:26:36,872 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-10-28 17:26:36,872 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:26:36,872 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 29 [2020-10-28 17:26:36,873 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:26:36,984 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-28 17:26:36,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:26:36,989 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:26:37,003 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:26:37,004 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-10-28 17:26:37,004 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:26:37,004 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-28 17:26:37,004 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:26:37,005 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:26:37,005 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-28 17:26:37,005 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:26:37,005 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-10-28 17:26:37,005 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:26:37,122 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-28 17:26:37,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:26:37,126 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:26:37,133 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:26:37,134 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-28 17:26:37,134 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:26:37,134 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-28 17:26:37,134 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:26:37,134 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:26:37,135 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-28 17:26:37,135 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:26:37,135 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-10-28 17:26:37,135 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:26:37,267 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-28 17:26:37,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:26:37,272 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:26:37,274 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:26:37,274 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-28 17:26:37,274 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:26:37,274 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-28 17:26:37,275 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:26:37,275 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:26:37,275 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-28 17:26:37,275 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:26:37,276 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-28 17:26:37,276 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 17:26:37,400 INFO L134 CoverageAnalysis]: Checked inductivity of 784 backedges. 0 proven. 392 refuted. 0 times theorem prover too weak. 392 trivial. 0 not checked. [2020-10-28 17:26:37,400 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1339391680] [2020-10-28 17:26:37,400 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-28 17:26:37,400 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [38] total 38 [2020-10-28 17:26:37,401 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [391515783] [2020-10-28 17:26:37,401 INFO L461 AbstractCegarLoop]: Interpolant automaton has 38 states [2020-10-28 17:26:37,401 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 17:26:37,402 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 38 interpolants. [2020-10-28 17:26:37,402 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=73, Invalid=1333, Unknown=0, NotChecked=0, Total=1406 [2020-10-28 17:26:37,403 INFO L87 Difference]: Start difference. First operand 65 states and 66 transitions. Second operand 38 states. [2020-10-28 17:26:41,514 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 17:26:41,514 INFO L93 Difference]: Finished difference Result 73 states and 74 transitions. [2020-10-28 17:26:41,515 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2020-10-28 17:26:41,515 INFO L78 Accepts]: Start accepts. Automaton has 38 states. Word has length 111 [2020-10-28 17:26:41,516 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 17:26:41,517 INFO L225 Difference]: With dead ends: 73 [2020-10-28 17:26:41,517 INFO L226 Difference]: Without dead ends: 68 [2020-10-28 17:26:41,519 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 108 GetRequests, 37 SyntacticMatches, 0 SemanticMatches, 71 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 595 ImplicationChecksByTransitivity, 3.6s TimeCoverageRelationStatistics Valid=213, Invalid=5043, Unknown=0, NotChecked=0, Total=5256 [2020-10-28 17:26:41,520 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 68 states. [2020-10-28 17:26:41,525 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 68 to 68. [2020-10-28 17:26:41,525 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 68 states. [2020-10-28 17:26:41,525 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68 states to 68 states and 69 transitions. [2020-10-28 17:26:41,526 INFO L78 Accepts]: Start accepts. Automaton has 68 states and 69 transitions. Word has length 111 [2020-10-28 17:26:41,526 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 17:26:41,526 INFO L481 AbstractCegarLoop]: Abstraction has 68 states and 69 transitions. [2020-10-28 17:26:41,526 INFO L482 AbstractCegarLoop]: Interpolant automaton has 38 states. [2020-10-28 17:26:41,526 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 69 transitions. [2020-10-28 17:26:41,528 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2020-10-28 17:26:41,528 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 17:26:41,528 INFO L422 BasicCegarLoop]: trace histogram [18, 18, 17, 17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-28 17:26:41,528 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2020-10-28 17:26:41,528 INFO L429 AbstractCegarLoop]: === Iteration 18 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 17:26:41,529 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 17:26:41,529 INFO L82 PathProgramCache]: Analyzing trace with hash 1831747727, now seen corresponding path program 17 times [2020-10-28 17:26:41,529 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 17:26:41,529 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1648445918] [2020-10-28 17:26:41,529 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 17:26:41,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:26:41,566 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:26:43,457 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:26:43,457 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 161 [2020-10-28 17:26:43,457 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:26:43,457 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1904 [2020-10-28 17:26:43,457 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:26:43,458 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:26:43,458 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 38 [2020-10-28 17:26:43,458 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 101 [2020-10-28 17:26:43,458 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 56 [2020-10-28 17:26:43,458 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:26:43,530 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 17:26:43,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:26:43,534 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:26:43,536 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:26:43,536 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 17:26:43,537 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:26:43,537 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-28 17:26:43,537 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:26:43,537 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:26:43,537 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 17:26:43,537 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:26:43,538 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 17:26:43,538 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:26:43,540 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-28 17:26:43,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:26:43,578 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:26:44,985 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:26:44,986 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 145 [2020-10-28 17:26:44,986 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:26:44,986 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1424 [2020-10-28 17:26:44,986 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:26:44,986 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:26:44,986 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 37 [2020-10-28 17:26:44,986 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:26:44,987 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 141 [2020-10-28 17:26:44,987 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:26:45,026 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-28 17:26:45,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:26:45,061 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:26:46,260 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:26:46,261 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 137 [2020-10-28 17:26:46,261 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:26:46,261 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1212 [2020-10-28 17:26:46,261 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:26:46,261 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:26:46,261 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 35 [2020-10-28 17:26:46,261 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:26:46,261 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 133 [2020-10-28 17:26:46,261 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:26:46,301 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-28 17:26:46,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:26:46,325 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:26:47,325 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:26:47,326 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 129 [2020-10-28 17:26:47,326 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:26:47,326 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1009 [2020-10-28 17:26:47,326 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:26:47,326 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:26:47,326 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 33 [2020-10-28 17:26:47,326 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:26:47,326 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 125 [2020-10-28 17:26:47,327 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:26:47,373 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-28 17:26:47,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:26:47,395 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:26:48,217 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:26:48,218 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 121 [2020-10-28 17:26:48,218 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:26:48,218 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 831 [2020-10-28 17:26:48,218 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:26:48,218 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:26:48,218 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 31 [2020-10-28 17:26:48,218 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:26:48,218 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 117 [2020-10-28 17:26:48,219 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:26:48,271 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-28 17:26:48,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:26:48,292 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:26:48,992 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:26:48,992 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 113 [2020-10-28 17:26:48,992 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:26:48,992 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 708 [2020-10-28 17:26:48,992 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:26:48,993 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:26:48,993 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 29 [2020-10-28 17:26:48,993 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:26:48,993 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 109 [2020-10-28 17:26:48,993 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:26:49,054 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-28 17:26:49,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:26:49,072 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:26:49,600 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:26:49,601 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 105 [2020-10-28 17:26:49,601 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:26:49,601 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 534 [2020-10-28 17:26:49,601 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:26:49,601 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:26:49,601 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 27 [2020-10-28 17:26:49,601 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:26:49,601 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 101 [2020-10-28 17:26:49,602 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:26:49,666 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-28 17:26:49,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:26:49,682 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:26:50,118 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:26:50,118 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 97 [2020-10-28 17:26:50,118 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:26:50,119 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 442 [2020-10-28 17:26:50,119 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:26:50,119 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:26:50,119 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 25 [2020-10-28 17:26:50,119 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:26:50,119 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 93 [2020-10-28 17:26:50,119 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:26:50,202 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-28 17:26:50,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:26:50,223 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:26:50,567 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:26:50,568 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 89 [2020-10-28 17:26:50,568 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:26:50,568 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 353 [2020-10-28 17:26:50,568 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:26:50,568 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:26:50,569 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 23 [2020-10-28 17:26:50,569 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:26:50,569 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 85 [2020-10-28 17:26:50,569 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:26:50,645 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-28 17:26:50,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:26:50,658 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:26:50,905 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:26:50,905 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 81 [2020-10-28 17:26:50,905 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:26:50,906 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 251 [2020-10-28 17:26:50,906 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:26:50,906 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:26:50,906 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 21 [2020-10-28 17:26:50,906 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:26:50,906 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 77 [2020-10-28 17:26:50,907 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:26:50,989 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-28 17:26:50,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:26:51,003 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:26:51,197 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:26:51,197 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 73 [2020-10-28 17:26:51,198 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:26:51,198 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 199 [2020-10-28 17:26:51,198 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:26:51,198 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:26:51,198 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 19 [2020-10-28 17:26:51,198 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:26:51,198 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 69 [2020-10-28 17:26:51,199 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:26:51,286 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-28 17:26:51,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:26:51,300 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:26:51,516 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:26:51,517 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 65 [2020-10-28 17:26:51,517 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:26:51,517 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 221 [2020-10-28 17:26:51,518 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:26:51,518 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:26:51,518 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 17 [2020-10-28 17:26:51,518 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:26:51,518 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 61 [2020-10-28 17:26:51,519 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 17:26:51,607 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-28 17:26:51,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:26:51,616 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:26:51,718 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:26:51,719 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 57 [2020-10-28 17:26:51,719 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:26:51,719 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 105 [2020-10-28 17:26:51,719 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:26:51,719 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:26:51,719 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-10-28 17:26:51,720 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:26:51,720 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 53 [2020-10-28 17:26:51,720 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:26:51,819 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-28 17:26:51,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:26:51,827 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:26:51,904 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:26:51,905 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 49 [2020-10-28 17:26:51,905 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:26:51,905 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 79 [2020-10-28 17:26:51,905 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:26:51,905 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:26:51,905 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-10-28 17:26:51,906 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:26:51,906 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 45 [2020-10-28 17:26:51,906 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:26:52,014 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-28 17:26:52,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:26:52,021 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:26:52,062 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:26:52,063 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 41 [2020-10-28 17:26:52,063 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:26:52,063 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 43 [2020-10-28 17:26:52,063 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:26:52,063 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:26:52,064 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-10-28 17:26:52,064 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:26:52,064 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 37 [2020-10-28 17:26:52,064 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:26:52,173 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-28 17:26:52,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:26:52,179 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:26:52,203 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:26:52,204 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-10-28 17:26:52,204 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:26:52,204 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 25 [2020-10-28 17:26:52,204 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:26:52,205 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:26:52,205 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-10-28 17:26:52,205 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:26:52,205 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 29 [2020-10-28 17:26:52,205 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:26:52,322 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-28 17:26:52,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:26:52,327 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:26:52,342 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:26:52,342 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-10-28 17:26:52,342 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:26:52,342 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-28 17:26:52,343 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:26:52,343 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:26:52,343 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-28 17:26:52,343 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:26:52,343 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-10-28 17:26:52,344 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:26:52,466 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-28 17:26:52,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:26:52,470 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:26:52,477 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:26:52,477 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-28 17:26:52,477 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:26:52,477 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-28 17:26:52,477 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:26:52,478 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:26:52,478 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-28 17:26:52,478 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:26:52,478 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-10-28 17:26:52,479 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 17:26:52,603 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-28 17:26:52,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:26:52,607 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:26:52,609 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:26:52,609 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-28 17:26:52,610 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:26:52,610 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-28 17:26:52,610 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:26:52,611 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:26:52,611 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-28 17:26:52,611 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:26:52,611 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-28 17:26:52,611 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 17:26:52,761 INFO L134 CoverageAnalysis]: Checked inductivity of 884 backedges. 0 proven. 442 refuted. 0 times theorem prover too weak. 442 trivial. 0 not checked. [2020-10-28 17:26:52,762 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1648445918] [2020-10-28 17:26:52,762 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-28 17:26:52,762 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [40] total 40 [2020-10-28 17:26:52,762 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [246161823] [2020-10-28 17:26:52,763 INFO L461 AbstractCegarLoop]: Interpolant automaton has 40 states [2020-10-28 17:26:52,763 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 17:26:52,763 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 40 interpolants. [2020-10-28 17:26:52,764 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=77, Invalid=1483, Unknown=0, NotChecked=0, Total=1560 [2020-10-28 17:26:52,764 INFO L87 Difference]: Start difference. First operand 68 states and 69 transitions. Second operand 40 states. [2020-10-28 17:26:57,333 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 17:26:57,333 INFO L93 Difference]: Finished difference Result 76 states and 77 transitions. [2020-10-28 17:26:57,334 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2020-10-28 17:26:57,334 INFO L78 Accepts]: Start accepts. Automaton has 40 states. Word has length 117 [2020-10-28 17:26:57,335 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 17:26:57,336 INFO L225 Difference]: With dead ends: 76 [2020-10-28 17:26:57,336 INFO L226 Difference]: Without dead ends: 71 [2020-10-28 17:26:57,338 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 114 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 75 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 666 ImplicationChecksByTransitivity, 3.9s TimeCoverageRelationStatistics Valid=225, Invalid=5627, Unknown=0, NotChecked=0, Total=5852 [2020-10-28 17:26:57,338 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 71 states. [2020-10-28 17:26:57,342 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 71 to 71. [2020-10-28 17:26:57,343 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 71 states. [2020-10-28 17:26:57,343 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 71 states to 71 states and 72 transitions. [2020-10-28 17:26:57,343 INFO L78 Accepts]: Start accepts. Automaton has 71 states and 72 transitions. Word has length 117 [2020-10-28 17:26:57,344 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 17:26:57,344 INFO L481 AbstractCegarLoop]: Abstraction has 71 states and 72 transitions. [2020-10-28 17:26:57,344 INFO L482 AbstractCegarLoop]: Interpolant automaton has 40 states. [2020-10-28 17:26:57,344 INFO L276 IsEmpty]: Start isEmpty. Operand 71 states and 72 transitions. [2020-10-28 17:26:57,346 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2020-10-28 17:26:57,346 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 17:26:57,346 INFO L422 BasicCegarLoop]: trace histogram [19, 19, 18, 18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-28 17:26:57,346 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2020-10-28 17:26:57,346 INFO L429 AbstractCegarLoop]: === Iteration 19 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 17:26:57,347 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 17:26:57,347 INFO L82 PathProgramCache]: Analyzing trace with hash 1286539077, now seen corresponding path program 18 times [2020-10-28 17:26:57,347 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 17:26:57,347 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [639913726] [2020-10-28 17:26:57,347 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 17:26:57,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:26:57,400 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:26:59,347 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:26:59,348 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 169 [2020-10-28 17:26:59,348 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:26:59,348 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1970 [2020-10-28 17:26:59,348 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:26:59,348 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:26:59,348 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 40 [2020-10-28 17:26:59,348 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 106 [2020-10-28 17:26:59,348 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 59 [2020-10-28 17:26:59,348 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:26:59,420 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 17:26:59,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:26:59,423 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:26:59,425 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:26:59,425 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 17:26:59,425 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:26:59,425 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-28 17:26:59,425 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:26:59,425 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:26:59,425 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 17:26:59,426 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:26:59,426 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 17:26:59,426 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:26:59,428 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-28 17:26:59,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:26:59,466 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:27:01,150 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:27:01,150 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 153 [2020-10-28 17:27:01,150 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:27:01,150 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1697 [2020-10-28 17:27:01,151 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:27:01,151 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:27:01,151 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 39 [2020-10-28 17:27:01,151 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:27:01,151 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 149 [2020-10-28 17:27:01,151 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:27:01,188 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-28 17:27:01,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:27:01,231 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:27:02,627 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:27:02,627 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 145 [2020-10-28 17:27:02,628 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:27:02,628 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1414 [2020-10-28 17:27:02,628 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:27:02,628 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:27:02,628 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 37 [2020-10-28 17:27:02,628 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:27:02,628 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 141 [2020-10-28 17:27:02,628 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:27:02,670 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-28 17:27:02,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:27:02,696 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:27:03,869 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:27:03,870 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 137 [2020-10-28 17:27:03,870 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:27:03,870 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1183 [2020-10-28 17:27:03,870 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:27:03,870 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:27:03,870 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 35 [2020-10-28 17:27:03,870 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:27:03,870 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 133 [2020-10-28 17:27:03,870 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:27:03,919 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-28 17:27:03,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:27:03,945 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:27:04,938 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:27:04,938 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 129 [2020-10-28 17:27:04,938 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:27:04,938 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1002 [2020-10-28 17:27:04,938 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:27:04,938 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:27:04,938 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 33 [2020-10-28 17:27:04,939 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:27:04,939 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 125 [2020-10-28 17:27:04,939 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:27:04,993 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-28 17:27:05,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:27:05,026 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:27:05,947 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:27:05,948 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 121 [2020-10-28 17:27:05,948 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:27:05,948 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 935 [2020-10-28 17:27:05,948 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:27:05,948 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:27:05,948 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 31 [2020-10-28 17:27:05,948 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:27:05,949 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 117 [2020-10-28 17:27:05,949 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:27:06,008 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-28 17:27:06,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:27:06,028 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:27:06,709 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:27:06,709 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 113 [2020-10-28 17:27:06,709 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:27:06,709 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 688 [2020-10-28 17:27:06,710 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:27:06,710 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:27:06,710 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 29 [2020-10-28 17:27:06,710 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:27:06,710 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 109 [2020-10-28 17:27:06,710 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:27:06,775 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-28 17:27:06,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:27:06,794 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:27:07,394 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:27:07,394 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 105 [2020-10-28 17:27:07,394 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:27:07,394 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 607 [2020-10-28 17:27:07,394 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:27:07,394 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:27:07,395 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 27 [2020-10-28 17:27:07,395 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:27:07,395 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 101 [2020-10-28 17:27:07,395 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:27:07,465 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-28 17:27:07,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:27:07,482 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:27:07,929 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:27:07,929 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 97 [2020-10-28 17:27:07,930 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:27:07,930 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 453 [2020-10-28 17:27:07,930 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:27:07,930 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:27:07,930 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 25 [2020-10-28 17:27:07,931 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:27:07,931 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 93 [2020-10-28 17:27:07,931 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 17:27:08,024 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-28 17:27:08,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:27:08,050 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:27:08,473 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:27:08,473 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 89 [2020-10-28 17:27:08,473 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:27:08,473 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 434 [2020-10-28 17:27:08,473 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:27:08,473 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:27:08,474 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 23 [2020-10-28 17:27:08,474 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:27:08,474 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 85 [2020-10-28 17:27:08,474 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:27:08,564 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-28 17:27:08,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:27:08,577 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:27:08,832 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:27:08,832 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 81 [2020-10-28 17:27:08,832 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:27:08,832 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 259 [2020-10-28 17:27:08,833 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:27:08,833 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:27:08,833 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 21 [2020-10-28 17:27:08,833 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:27:08,833 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 77 [2020-10-28 17:27:08,833 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:27:08,921 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-28 17:27:08,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:27:08,933 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:27:09,114 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:27:09,114 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 73 [2020-10-28 17:27:09,114 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:27:09,115 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 185 [2020-10-28 17:27:09,115 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:27:09,115 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:27:09,115 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 19 [2020-10-28 17:27:09,115 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:27:09,115 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 69 [2020-10-28 17:27:09,116 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:27:09,210 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-28 17:27:09,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:27:09,221 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:27:09,355 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:27:09,355 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 65 [2020-10-28 17:27:09,356 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:27:09,356 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 138 [2020-10-28 17:27:09,356 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:27:09,356 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:27:09,356 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 17 [2020-10-28 17:27:09,356 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:27:09,357 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 61 [2020-10-28 17:27:09,357 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:27:09,463 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-28 17:27:09,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:27:09,471 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:27:09,568 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:27:09,568 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 57 [2020-10-28 17:27:09,568 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:27:09,568 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 99 [2020-10-28 17:27:09,568 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:27:09,569 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:27:09,569 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-10-28 17:27:09,569 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:27:09,569 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 53 [2020-10-28 17:27:09,569 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:27:09,676 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-28 17:27:09,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:27:09,683 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:27:09,785 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:27:09,785 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 49 [2020-10-28 17:27:09,785 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:27:09,785 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 103 [2020-10-28 17:27:09,786 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:27:09,786 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:27:09,786 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-10-28 17:27:09,786 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:27:09,787 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 45 [2020-10-28 17:27:09,787 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 17:27:09,901 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-28 17:27:09,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:27:09,909 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:27:09,952 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:27:09,953 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 41 [2020-10-28 17:27:09,953 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:27:09,953 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 45 [2020-10-28 17:27:09,953 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:27:09,953 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:27:09,954 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-10-28 17:27:09,954 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:27:09,954 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 37 [2020-10-28 17:27:09,954 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:27:10,071 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-28 17:27:10,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:27:10,077 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:27:10,104 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:27:10,104 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-10-28 17:27:10,104 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:27:10,104 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 27 [2020-10-28 17:27:10,104 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:27:10,105 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:27:10,105 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-10-28 17:27:10,105 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:27:10,105 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 29 [2020-10-28 17:27:10,105 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:27:10,230 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-28 17:27:10,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:27:10,234 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:27:10,248 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:27:10,249 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-10-28 17:27:10,249 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:27:10,249 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-28 17:27:10,249 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:27:10,249 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:27:10,249 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-28 17:27:10,250 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:27:10,250 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-10-28 17:27:10,250 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:27:10,383 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-28 17:27:10,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:27:10,388 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:27:10,394 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:27:10,394 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-28 17:27:10,395 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:27:10,395 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-28 17:27:10,395 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:27:10,395 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:27:10,395 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-28 17:27:10,395 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:27:10,396 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-10-28 17:27:10,396 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:27:10,532 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-28 17:27:10,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:27:10,535 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:27:10,537 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:27:10,538 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-28 17:27:10,538 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:27:10,538 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-28 17:27:10,538 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:27:10,538 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:27:10,539 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-28 17:27:10,539 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:27:10,539 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-28 17:27:10,539 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 17:27:10,709 INFO L134 CoverageAnalysis]: Checked inductivity of 990 backedges. 0 proven. 495 refuted. 0 times theorem prover too weak. 495 trivial. 0 not checked. [2020-10-28 17:27:10,709 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [639913726] [2020-10-28 17:27:10,709 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-28 17:27:10,709 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [42] total 42 [2020-10-28 17:27:10,710 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [162173535] [2020-10-28 17:27:10,710 INFO L461 AbstractCegarLoop]: Interpolant automaton has 42 states [2020-10-28 17:27:10,710 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 17:27:10,710 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 42 interpolants. [2020-10-28 17:27:10,711 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=81, Invalid=1641, Unknown=0, NotChecked=0, Total=1722 [2020-10-28 17:27:10,711 INFO L87 Difference]: Start difference. First operand 71 states and 72 transitions. Second operand 42 states. [2020-10-28 17:27:15,711 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 17:27:15,711 INFO L93 Difference]: Finished difference Result 79 states and 80 transitions. [2020-10-28 17:27:15,711 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 42 states. [2020-10-28 17:27:15,712 INFO L78 Accepts]: Start accepts. Automaton has 42 states. Word has length 123 [2020-10-28 17:27:15,712 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 17:27:15,713 INFO L225 Difference]: With dead ends: 79 [2020-10-28 17:27:15,713 INFO L226 Difference]: Without dead ends: 74 [2020-10-28 17:27:15,716 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 120 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 79 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 741 ImplicationChecksByTransitivity, 4.4s TimeCoverageRelationStatistics Valid=237, Invalid=6243, Unknown=0, NotChecked=0, Total=6480 [2020-10-28 17:27:15,717 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 74 states. [2020-10-28 17:27:15,721 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 74 to 74. [2020-10-28 17:27:15,721 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 74 states. [2020-10-28 17:27:15,722 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 74 states to 74 states and 75 transitions. [2020-10-28 17:27:15,722 INFO L78 Accepts]: Start accepts. Automaton has 74 states and 75 transitions. Word has length 123 [2020-10-28 17:27:15,722 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 17:27:15,722 INFO L481 AbstractCegarLoop]: Abstraction has 74 states and 75 transitions. [2020-10-28 17:27:15,722 INFO L482 AbstractCegarLoop]: Interpolant automaton has 42 states. [2020-10-28 17:27:15,723 INFO L276 IsEmpty]: Start isEmpty. Operand 74 states and 75 transitions. [2020-10-28 17:27:15,723 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2020-10-28 17:27:15,724 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 17:27:15,724 INFO L422 BasicCegarLoop]: trace histogram [20, 20, 19, 19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-28 17:27:15,724 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2020-10-28 17:27:15,724 INFO L429 AbstractCegarLoop]: === Iteration 20 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 17:27:15,724 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 17:27:15,724 INFO L82 PathProgramCache]: Analyzing trace with hash 626937743, now seen corresponding path program 19 times [2020-10-28 17:27:15,724 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 17:27:15,724 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1235929328] [2020-10-28 17:27:15,725 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 17:27:15,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:27:15,763 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:27:18,060 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:27:18,060 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 177 [2020-10-28 17:27:18,060 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:27:18,060 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2312 [2020-10-28 17:27:18,060 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:27:18,060 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:27:18,060 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 42 [2020-10-28 17:27:18,060 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 111 [2020-10-28 17:27:18,060 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 62 [2020-10-28 17:27:18,061 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:27:18,129 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 17:27:18,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:27:18,132 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:27:18,134 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:27:18,134 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 17:27:18,134 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:27:18,134 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-28 17:27:18,134 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:27:18,134 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:27:18,135 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 17:27:18,135 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:27:18,135 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 17:27:18,135 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:27:18,136 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-28 17:27:18,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:27:18,180 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:27:20,132 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:27:20,132 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 161 [2020-10-28 17:27:20,132 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:27:20,132 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1976 [2020-10-28 17:27:20,132 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:27:20,133 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:27:20,133 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 41 [2020-10-28 17:27:20,133 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:27:20,133 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 157 [2020-10-28 17:27:20,133 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:27:20,169 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-28 17:27:20,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:27:20,201 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:27:21,904 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:27:21,904 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 153 [2020-10-28 17:27:21,904 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:27:21,904 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1716 [2020-10-28 17:27:21,905 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:27:21,905 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:27:21,905 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 39 [2020-10-28 17:27:21,905 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:27:21,905 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 149 [2020-10-28 17:27:21,905 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:27:21,945 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-28 17:27:21,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:27:21,975 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:27:23,373 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:27:23,373 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 145 [2020-10-28 17:27:23,373 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:27:23,374 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1410 [2020-10-28 17:27:23,374 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:27:23,374 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:27:23,374 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 37 [2020-10-28 17:27:23,374 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:27:23,374 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 141 [2020-10-28 17:27:23,374 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:27:23,424 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-28 17:27:23,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:27:23,452 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:27:24,630 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:27:24,630 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 137 [2020-10-28 17:27:24,630 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:27:24,630 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1189 [2020-10-28 17:27:24,630 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:27:24,631 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:27:24,631 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 35 [2020-10-28 17:27:24,631 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:27:24,631 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 133 [2020-10-28 17:27:24,631 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:27:24,690 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-28 17:27:24,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:27:24,714 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:27:25,715 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:27:25,715 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 129 [2020-10-28 17:27:25,715 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:27:25,716 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1009 [2020-10-28 17:27:25,716 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:27:25,716 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:27:25,716 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 33 [2020-10-28 17:27:25,716 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:27:25,716 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 125 [2020-10-28 17:27:25,716 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:27:25,778 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-28 17:27:25,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:27:25,801 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:27:26,609 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:27:26,609 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 121 [2020-10-28 17:27:26,609 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:27:26,610 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 817 [2020-10-28 17:27:26,610 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:27:26,610 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:27:26,610 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 31 [2020-10-28 17:27:26,610 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:27:26,610 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 117 [2020-10-28 17:27:26,610 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:27:26,676 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-28 17:27:26,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:27:26,697 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:27:27,454 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:27:27,454 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 113 [2020-10-28 17:27:27,454 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:27:27,455 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 765 [2020-10-28 17:27:27,455 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:27:27,455 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:27:27,455 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 29 [2020-10-28 17:27:27,455 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:27:27,455 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 109 [2020-10-28 17:27:27,455 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:27:27,529 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-28 17:27:27,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:27:27,548 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:27:28,077 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:27:28,077 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 105 [2020-10-28 17:27:28,078 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:27:28,078 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 536 [2020-10-28 17:27:28,078 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:27:28,078 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:27:28,078 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 27 [2020-10-28 17:27:28,078 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:27:28,078 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 101 [2020-10-28 17:27:28,079 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:27:28,156 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-28 17:27:28,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:27:28,173 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:27:28,597 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:27:28,598 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 97 [2020-10-28 17:27:28,598 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:27:28,598 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 431 [2020-10-28 17:27:28,598 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:27:28,598 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:27:28,599 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 25 [2020-10-28 17:27:28,599 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:27:28,599 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 93 [2020-10-28 17:27:28,599 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:27:28,686 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-28 17:27:28,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:27:28,701 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:27:29,025 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:27:29,026 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 89 [2020-10-28 17:27:29,026 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:27:29,026 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 329 [2020-10-28 17:27:29,026 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:27:29,026 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:27:29,026 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 23 [2020-10-28 17:27:29,027 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:27:29,027 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 85 [2020-10-28 17:27:29,027 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:27:29,117 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-28 17:27:29,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:27:29,129 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:27:29,397 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:27:29,397 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 81 [2020-10-28 17:27:29,398 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:27:29,398 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 272 [2020-10-28 17:27:29,398 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:27:29,398 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:27:29,398 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 21 [2020-10-28 17:27:29,398 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:27:29,398 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 77 [2020-10-28 17:27:29,399 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:27:29,494 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-28 17:27:29,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:27:29,506 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:27:29,685 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:27:29,685 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 73 [2020-10-28 17:27:29,685 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:27:29,685 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 182 [2020-10-28 17:27:29,686 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:27:29,686 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:27:29,686 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 19 [2020-10-28 17:27:29,686 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:27:29,686 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 69 [2020-10-28 17:27:29,686 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:27:29,788 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-28 17:27:29,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:27:29,797 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:27:29,925 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:27:29,925 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 65 [2020-10-28 17:27:29,925 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:27:29,926 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 130 [2020-10-28 17:27:29,926 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:27:29,926 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:27:29,926 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 17 [2020-10-28 17:27:29,926 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:27:29,926 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 61 [2020-10-28 17:27:29,927 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:27:30,035 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-28 17:27:30,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:27:30,043 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:27:30,138 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:27:30,138 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 57 [2020-10-28 17:27:30,138 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:27:30,138 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 97 [2020-10-28 17:27:30,138 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:27:30,139 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:27:30,139 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-10-28 17:27:30,139 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:27:30,139 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 53 [2020-10-28 17:27:30,139 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:27:30,253 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-28 17:27:30,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:27:30,265 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:27:30,340 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:27:30,340 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 49 [2020-10-28 17:27:30,340 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:27:30,341 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 78 [2020-10-28 17:27:30,341 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:27:30,341 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:27:30,341 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-10-28 17:27:30,341 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:27:30,342 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 45 [2020-10-28 17:27:30,342 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:27:30,451 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-28 17:27:30,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:27:30,460 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:27:30,511 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:27:30,511 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 41 [2020-10-28 17:27:30,511 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:27:30,511 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 53 [2020-10-28 17:27:30,511 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:27:30,512 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:27:30,512 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-10-28 17:27:30,512 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:27:30,512 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 37 [2020-10-28 17:27:30,512 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:27:30,638 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-28 17:27:30,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:27:30,643 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:27:30,669 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:27:30,669 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-10-28 17:27:30,669 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:27:30,669 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 27 [2020-10-28 17:27:30,670 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:27:30,670 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:27:30,670 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-10-28 17:27:30,670 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:27:30,670 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 29 [2020-10-28 17:27:30,670 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:27:30,801 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-28 17:27:30,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:27:30,806 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:27:30,819 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:27:30,820 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-10-28 17:27:30,820 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:27:30,820 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-28 17:27:30,820 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:27:30,821 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:27:30,821 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-28 17:27:30,821 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:27:30,821 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-10-28 17:27:30,821 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 17:27:30,959 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-28 17:27:30,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:27:30,963 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:27:30,970 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:27:30,970 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-28 17:27:30,970 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:27:30,970 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-28 17:27:30,971 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:27:30,971 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:27:30,971 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-28 17:27:30,971 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:27:30,972 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-10-28 17:27:30,972 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 17:27:31,110 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-28 17:27:31,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:27:31,113 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:27:31,115 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:27:31,115 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-28 17:27:31,115 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:27:31,115 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-28 17:27:31,115 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:27:31,116 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:27:31,116 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-28 17:27:31,116 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:27:31,117 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-28 17:27:31,117 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 17:27:31,288 INFO L134 CoverageAnalysis]: Checked inductivity of 1102 backedges. 0 proven. 551 refuted. 0 times theorem prover too weak. 551 trivial. 0 not checked. [2020-10-28 17:27:31,288 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1235929328] [2020-10-28 17:27:31,288 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-28 17:27:31,288 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [44] total 44 [2020-10-28 17:27:31,289 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1018297665] [2020-10-28 17:27:31,289 INFO L461 AbstractCegarLoop]: Interpolant automaton has 44 states [2020-10-28 17:27:31,289 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 17:27:31,289 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 44 interpolants. [2020-10-28 17:27:31,290 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=85, Invalid=1807, Unknown=0, NotChecked=0, Total=1892 [2020-10-28 17:27:31,290 INFO L87 Difference]: Start difference. First operand 74 states and 75 transitions. Second operand 44 states. [2020-10-28 17:27:36,691 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 17:27:36,691 INFO L93 Difference]: Finished difference Result 82 states and 83 transitions. [2020-10-28 17:27:36,691 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2020-10-28 17:27:36,692 INFO L78 Accepts]: Start accepts. Automaton has 44 states. Word has length 129 [2020-10-28 17:27:36,692 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 17:27:36,693 INFO L225 Difference]: With dead ends: 82 [2020-10-28 17:27:36,693 INFO L226 Difference]: Without dead ends: 77 [2020-10-28 17:27:36,695 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 126 GetRequests, 43 SyntacticMatches, 0 SemanticMatches, 83 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 820 ImplicationChecksByTransitivity, 4.7s TimeCoverageRelationStatistics Valid=249, Invalid=6891, Unknown=0, NotChecked=0, Total=7140 [2020-10-28 17:27:36,695 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 77 states. [2020-10-28 17:27:36,699 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 77 to 77. [2020-10-28 17:27:36,700 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 77 states. [2020-10-28 17:27:36,700 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 77 states to 77 states and 78 transitions. [2020-10-28 17:27:36,701 INFO L78 Accepts]: Start accepts. Automaton has 77 states and 78 transitions. Word has length 129 [2020-10-28 17:27:36,701 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 17:27:36,701 INFO L481 AbstractCegarLoop]: Abstraction has 77 states and 78 transitions. [2020-10-28 17:27:36,701 INFO L482 AbstractCegarLoop]: Interpolant automaton has 44 states. [2020-10-28 17:27:36,701 INFO L276 IsEmpty]: Start isEmpty. Operand 77 states and 78 transitions. [2020-10-28 17:27:36,703 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2020-10-28 17:27:36,703 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 17:27:36,703 INFO L422 BasicCegarLoop]: trace histogram [21, 21, 20, 20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-28 17:27:36,703 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2020-10-28 17:27:36,703 INFO L429 AbstractCegarLoop]: === Iteration 21 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 17:27:36,704 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 17:27:36,704 INFO L82 PathProgramCache]: Analyzing trace with hash 1436396997, now seen corresponding path program 20 times [2020-10-28 17:27:36,704 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 17:27:36,704 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [823650044] [2020-10-28 17:27:36,704 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 17:27:36,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:27:36,769 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:27:39,401 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:27:39,401 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 185 [2020-10-28 17:27:39,401 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:27:39,401 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2650 [2020-10-28 17:27:39,401 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:27:39,401 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:27:39,402 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 44 [2020-10-28 17:27:39,402 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 116 [2020-10-28 17:27:39,402 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 65 [2020-10-28 17:27:39,402 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:27:39,481 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 17:27:39,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:27:39,483 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:27:39,485 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:27:39,485 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 17:27:39,486 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:27:39,486 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-28 17:27:39,486 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:27:39,486 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:27:39,486 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 17:27:39,486 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:27:39,486 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 17:27:39,486 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:27:39,488 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-28 17:27:39,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:27:39,542 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:27:41,869 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:27:41,869 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 169 [2020-10-28 17:27:41,869 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:27:41,869 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2350 [2020-10-28 17:27:41,869 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:27:41,869 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:27:41,870 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 43 [2020-10-28 17:27:41,870 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:27:41,870 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 165 [2020-10-28 17:27:41,870 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:27:41,924 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-28 17:27:41,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:27:41,958 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:27:43,924 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:27:43,924 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 161 [2020-10-28 17:27:43,924 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:27:43,924 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1979 [2020-10-28 17:27:43,924 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:27:43,924 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:27:43,925 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 41 [2020-10-28 17:27:43,925 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:27:43,925 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 157 [2020-10-28 17:27:43,925 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:27:43,970 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-28 17:27:43,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:27:44,002 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:27:45,669 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:27:45,669 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 153 [2020-10-28 17:27:45,669 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:27:45,669 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1679 [2020-10-28 17:27:45,670 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:27:45,670 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:27:45,670 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 39 [2020-10-28 17:27:45,670 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:27:45,670 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 149 [2020-10-28 17:27:45,670 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:27:45,721 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-28 17:27:45,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:27:45,760 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:27:47,156 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:27:47,156 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 145 [2020-10-28 17:27:47,157 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:27:47,157 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1413 [2020-10-28 17:27:47,157 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:27:47,157 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:27:47,157 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 37 [2020-10-28 17:27:47,157 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:27:47,158 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 141 [2020-10-28 17:27:47,158 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:27:47,217 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-28 17:27:47,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:27:47,257 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:27:48,451 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:27:48,451 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 137 [2020-10-28 17:27:48,451 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:27:48,452 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1205 [2020-10-28 17:27:48,452 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:27:48,452 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:27:48,452 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 35 [2020-10-28 17:27:48,452 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:27:48,452 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 133 [2020-10-28 17:27:48,452 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:27:48,514 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-28 17:27:48,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:27:48,538 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:27:49,512 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:27:49,512 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 129 [2020-10-28 17:27:49,512 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:27:49,512 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 983 [2020-10-28 17:27:49,512 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:27:49,512 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:27:49,513 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 33 [2020-10-28 17:27:49,513 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:27:49,513 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 125 [2020-10-28 17:27:49,513 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:27:49,580 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-28 17:27:49,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:27:49,603 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:27:50,430 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:27:50,431 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 121 [2020-10-28 17:27:50,431 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:27:50,431 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 836 [2020-10-28 17:27:50,431 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:27:50,432 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:27:50,432 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 31 [2020-10-28 17:27:50,432 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:27:50,432 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 117 [2020-10-28 17:27:50,432 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:27:50,514 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-28 17:27:50,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:27:50,543 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:27:51,250 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:27:51,250 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 113 [2020-10-28 17:27:51,250 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:27:51,250 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 719 [2020-10-28 17:27:51,250 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:27:51,251 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:27:51,251 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 29 [2020-10-28 17:27:51,251 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:27:51,251 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 109 [2020-10-28 17:27:51,251 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:27:51,333 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-28 17:27:51,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:27:51,351 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:27:51,870 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:27:51,870 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 105 [2020-10-28 17:27:51,870 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:27:51,870 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 525 [2020-10-28 17:27:51,870 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:27:51,870 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:27:51,871 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 27 [2020-10-28 17:27:51,871 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:27:51,871 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 101 [2020-10-28 17:27:51,871 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:27:51,956 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-28 17:27:51,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:27:51,973 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:27:52,390 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:27:52,391 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 97 [2020-10-28 17:27:52,391 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:27:52,391 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 423 [2020-10-28 17:27:52,391 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:27:52,391 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:27:52,391 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 25 [2020-10-28 17:27:52,392 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:27:52,392 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 93 [2020-10-28 17:27:52,392 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:27:52,483 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-28 17:27:52,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:27:52,497 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:27:52,820 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:27:52,820 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 89 [2020-10-28 17:27:52,820 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:27:52,821 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 328 [2020-10-28 17:27:52,821 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:27:52,821 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:27:52,821 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 23 [2020-10-28 17:27:52,821 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:27:52,821 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 85 [2020-10-28 17:27:52,821 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:27:52,918 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-28 17:27:52,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:27:52,931 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:27:53,174 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:27:53,174 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 81 [2020-10-28 17:27:53,174 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:27:53,174 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 246 [2020-10-28 17:27:53,174 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:27:53,175 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:27:53,175 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 21 [2020-10-28 17:27:53,175 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:27:53,175 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 77 [2020-10-28 17:27:53,175 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 17:27:53,278 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-28 17:27:53,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:27:53,290 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:27:53,474 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:27:53,475 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 73 [2020-10-28 17:27:53,475 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:27:53,475 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 188 [2020-10-28 17:27:53,475 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:27:53,475 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:27:53,475 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 19 [2020-10-28 17:27:53,476 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:27:53,476 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 69 [2020-10-28 17:27:53,476 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:27:53,584 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-28 17:27:53,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:27:53,595 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:27:53,735 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:27:53,735 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 65 [2020-10-28 17:27:53,736 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:27:53,736 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 143 [2020-10-28 17:27:53,736 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:27:53,736 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:27:53,736 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 17 [2020-10-28 17:27:53,736 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:27:53,737 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 61 [2020-10-28 17:27:53,737 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:27:53,851 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-28 17:27:53,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:27:53,859 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:27:53,954 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:27:53,954 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 57 [2020-10-28 17:27:53,954 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:27:53,954 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 97 [2020-10-28 17:27:53,954 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:27:53,955 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:27:53,955 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-10-28 17:27:53,955 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:27:53,955 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 53 [2020-10-28 17:27:53,955 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:27:54,076 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-28 17:27:54,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:27:54,084 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:27:54,145 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:27:54,146 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 49 [2020-10-28 17:27:54,146 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:27:54,146 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 63 [2020-10-28 17:27:54,146 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:27:54,146 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:27:54,146 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-10-28 17:27:54,147 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:27:54,147 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 45 [2020-10-28 17:27:54,147 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:27:54,274 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-28 17:27:54,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:27:54,280 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:27:54,319 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:27:54,320 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 41 [2020-10-28 17:27:54,320 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:27:54,320 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 40 [2020-10-28 17:27:54,320 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:27:54,320 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:27:54,321 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-10-28 17:27:54,321 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:27:54,321 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 37 [2020-10-28 17:27:54,321 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:27:54,454 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-28 17:27:54,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:27:54,459 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:27:54,482 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:27:54,483 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-10-28 17:27:54,483 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:27:54,483 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-10-28 17:27:54,483 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:27:54,484 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:27:54,484 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-10-28 17:27:54,484 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:27:54,484 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 29 [2020-10-28 17:27:54,484 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:27:54,622 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-28 17:27:54,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:27:54,628 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:27:54,643 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:27:54,643 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-10-28 17:27:54,644 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:27:54,644 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-28 17:27:54,644 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:27:54,644 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:27:54,644 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-28 17:27:54,645 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:27:54,645 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-10-28 17:27:54,645 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:27:54,791 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-28 17:27:54,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:27:54,795 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:27:54,801 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:27:54,802 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-28 17:27:54,802 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:27:54,802 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-28 17:27:54,802 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:27:54,802 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:27:54,803 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-28 17:27:54,803 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:27:54,803 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-10-28 17:27:54,803 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 17:27:54,954 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-28 17:27:54,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:27:54,957 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:27:54,959 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:27:54,959 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-28 17:27:54,959 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:27:54,960 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-28 17:27:54,960 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:27:54,960 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:27:54,961 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-28 17:27:54,961 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:27:54,961 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-28 17:27:54,961 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 17:27:55,173 INFO L134 CoverageAnalysis]: Checked inductivity of 1220 backedges. 0 proven. 610 refuted. 0 times theorem prover too weak. 610 trivial. 0 not checked. [2020-10-28 17:27:55,174 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [823650044] [2020-10-28 17:27:55,174 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-28 17:27:55,174 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [46] total 46 [2020-10-28 17:27:55,174 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [136761580] [2020-10-28 17:27:55,175 INFO L461 AbstractCegarLoop]: Interpolant automaton has 46 states [2020-10-28 17:27:55,175 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 17:27:55,175 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 46 interpolants. [2020-10-28 17:27:55,176 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=89, Invalid=1981, Unknown=0, NotChecked=0, Total=2070 [2020-10-28 17:27:55,176 INFO L87 Difference]: Start difference. First operand 77 states and 78 transitions. Second operand 46 states. [2020-10-28 17:28:01,085 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 17:28:01,085 INFO L93 Difference]: Finished difference Result 85 states and 86 transitions. [2020-10-28 17:28:01,086 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 46 states. [2020-10-28 17:28:01,086 INFO L78 Accepts]: Start accepts. Automaton has 46 states. Word has length 135 [2020-10-28 17:28:01,087 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 17:28:01,088 INFO L225 Difference]: With dead ends: 85 [2020-10-28 17:28:01,089 INFO L226 Difference]: Without dead ends: 80 [2020-10-28 17:28:01,092 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 132 GetRequests, 45 SyntacticMatches, 0 SemanticMatches, 87 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 903 ImplicationChecksByTransitivity, 5.1s TimeCoverageRelationStatistics Valid=261, Invalid=7571, Unknown=0, NotChecked=0, Total=7832 [2020-10-28 17:28:01,093 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 80 states. [2020-10-28 17:28:01,098 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 80 to 80. [2020-10-28 17:28:01,098 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 80 states. [2020-10-28 17:28:01,099 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 80 states to 80 states and 81 transitions. [2020-10-28 17:28:01,100 INFO L78 Accepts]: Start accepts. Automaton has 80 states and 81 transitions. Word has length 135 [2020-10-28 17:28:01,101 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 17:28:01,101 INFO L481 AbstractCegarLoop]: Abstraction has 80 states and 81 transitions. [2020-10-28 17:28:01,101 INFO L482 AbstractCegarLoop]: Interpolant automaton has 46 states. [2020-10-28 17:28:01,102 INFO L276 IsEmpty]: Start isEmpty. Operand 80 states and 81 transitions. [2020-10-28 17:28:01,104 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2020-10-28 17:28:01,104 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 17:28:01,104 INFO L422 BasicCegarLoop]: trace histogram [22, 22, 21, 21, 21, 21, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-28 17:28:01,104 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2020-10-28 17:28:01,105 INFO L429 AbstractCegarLoop]: === Iteration 22 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 17:28:01,105 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 17:28:01,105 INFO L82 PathProgramCache]: Analyzing trace with hash -1444475249, now seen corresponding path program 21 times [2020-10-28 17:28:01,105 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 17:28:01,106 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1542952835] [2020-10-28 17:28:01,106 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 17:28:01,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:28:01,153 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:28:04,593 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:28:04,593 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 193 [2020-10-28 17:28:04,593 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:28:04,594 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3459 [2020-10-28 17:28:04,594 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:28:04,594 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:28:04,594 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 46 [2020-10-28 17:28:04,594 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 121 [2020-10-28 17:28:04,594 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 68 [2020-10-28 17:28:04,594 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:28:04,671 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 17:28:04,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:28:04,674 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:28:04,676 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:28:04,677 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 17:28:04,677 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:28:04,677 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-28 17:28:04,677 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:28:04,677 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:28:04,677 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 17:28:04,677 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:28:04,677 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 17:28:04,677 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:28:04,679 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-28 17:28:04,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:28:04,716 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:28:07,342 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:28:07,342 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 177 [2020-10-28 17:28:07,342 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:28:07,342 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2642 [2020-10-28 17:28:07,343 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:28:07,343 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:28:07,343 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 45 [2020-10-28 17:28:07,343 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:28:07,343 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 173 [2020-10-28 17:28:07,343 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:28:07,382 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-28 17:28:07,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:28:07,419 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:28:09,914 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:28:09,914 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 169 [2020-10-28 17:28:09,914 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:28:09,914 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2510 [2020-10-28 17:28:09,914 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:28:09,914 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:28:09,915 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 43 [2020-10-28 17:28:09,915 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:28:09,915 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 165 [2020-10-28 17:28:09,915 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:28:09,959 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-28 17:28:09,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:28:09,993 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:28:11,948 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:28:11,949 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 161 [2020-10-28 17:28:11,949 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:28:11,949 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1969 [2020-10-28 17:28:11,949 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:28:11,949 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:28:11,949 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 41 [2020-10-28 17:28:11,949 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:28:11,949 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 157 [2020-10-28 17:28:11,949 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:28:12,001 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-28 17:28:12,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:28:12,033 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:28:13,729 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:28:13,729 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 153 [2020-10-28 17:28:13,729 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:28:13,730 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1708 [2020-10-28 17:28:13,730 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:28:13,730 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:28:13,730 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 39 [2020-10-28 17:28:13,730 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:28:13,730 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 149 [2020-10-28 17:28:13,730 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:28:13,788 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-28 17:28:13,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:28:13,817 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:28:15,229 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:28:15,230 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 145 [2020-10-28 17:28:15,230 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:28:15,230 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1424 [2020-10-28 17:28:15,230 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:28:15,230 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:28:15,230 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 37 [2020-10-28 17:28:15,231 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:28:15,231 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 141 [2020-10-28 17:28:15,231 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:28:15,294 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-28 17:28:15,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:28:15,321 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:28:16,501 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:28:16,501 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 137 [2020-10-28 17:28:16,501 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:28:16,501 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1190 [2020-10-28 17:28:16,502 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:28:16,502 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:28:16,502 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 35 [2020-10-28 17:28:16,502 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:28:16,502 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 133 [2020-10-28 17:28:16,502 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:28:16,570 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-28 17:28:16,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:28:16,595 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:28:17,593 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:28:17,593 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 129 [2020-10-28 17:28:17,593 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:28:17,593 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1007 [2020-10-28 17:28:17,594 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:28:17,594 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:28:17,594 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 33 [2020-10-28 17:28:17,594 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:28:17,594 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 125 [2020-10-28 17:28:17,594 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:28:17,669 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-28 17:28:17,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:28:17,692 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:28:18,484 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:28:18,485 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 121 [2020-10-28 17:28:18,485 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:28:18,485 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 801 [2020-10-28 17:28:18,485 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:28:18,485 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:28:18,485 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 31 [2020-10-28 17:28:18,486 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:28:18,486 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 117 [2020-10-28 17:28:18,486 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:28:18,570 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-28 17:28:18,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:28:18,594 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:28:19,251 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:28:19,251 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 113 [2020-10-28 17:28:19,251 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:28:19,251 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 665 [2020-10-28 17:28:19,252 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:28:19,252 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:28:19,252 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 29 [2020-10-28 17:28:19,252 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:28:19,252 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 109 [2020-10-28 17:28:19,253 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 17:28:19,340 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-28 17:28:19,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:28:19,358 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:28:19,896 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:28:19,896 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 105 [2020-10-28 17:28:19,896 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:28:19,896 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 544 [2020-10-28 17:28:19,896 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:28:19,896 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:28:19,897 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 27 [2020-10-28 17:28:19,897 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:28:19,897 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 101 [2020-10-28 17:28:19,897 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:28:19,989 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-28 17:28:19,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:28:20,005 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:28:20,416 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:28:20,416 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 97 [2020-10-28 17:28:20,416 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:28:20,417 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 417 [2020-10-28 17:28:20,417 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:28:20,417 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:28:20,417 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 25 [2020-10-28 17:28:20,417 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:28:20,417 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 93 [2020-10-28 17:28:20,418 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:28:20,516 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-28 17:28:20,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:28:20,531 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:28:20,847 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:28:20,847 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 89 [2020-10-28 17:28:20,848 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:28:20,848 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 321 [2020-10-28 17:28:20,848 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:28:20,848 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:28:20,848 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 23 [2020-10-28 17:28:20,848 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:28:20,849 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 85 [2020-10-28 17:28:20,849 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:28:20,953 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-28 17:28:20,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:28:20,975 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:28:21,224 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:28:21,224 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 81 [2020-10-28 17:28:21,224 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:28:21,224 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 254 [2020-10-28 17:28:21,225 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:28:21,225 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:28:21,225 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 21 [2020-10-28 17:28:21,225 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:28:21,225 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 77 [2020-10-28 17:28:21,225 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:28:21,337 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-28 17:28:21,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:28:21,348 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:28:21,534 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:28:21,534 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 73 [2020-10-28 17:28:21,534 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:28:21,534 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 189 [2020-10-28 17:28:21,535 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:28:21,535 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:28:21,535 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 19 [2020-10-28 17:28:21,535 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:28:21,535 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 69 [2020-10-28 17:28:21,535 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:28:21,648 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-28 17:28:21,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:28:21,659 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:28:21,797 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:28:21,797 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 65 [2020-10-28 17:28:21,797 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:28:21,797 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 141 [2020-10-28 17:28:21,797 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:28:21,798 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:28:21,798 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 17 [2020-10-28 17:28:21,798 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:28:21,798 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 61 [2020-10-28 17:28:21,798 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:28:21,920 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-28 17:28:21,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:28:21,930 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:28:22,022 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:28:22,023 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 57 [2020-10-28 17:28:22,023 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:28:22,023 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 95 [2020-10-28 17:28:22,023 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:28:22,024 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:28:22,024 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-10-28 17:28:22,024 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:28:22,024 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 53 [2020-10-28 17:28:22,024 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:28:22,151 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-28 17:28:22,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:28:22,161 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:28:22,224 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:28:22,225 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 49 [2020-10-28 17:28:22,225 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:28:22,225 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 66 [2020-10-28 17:28:22,225 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:28:22,225 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:28:22,226 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-10-28 17:28:22,226 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:28:22,226 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 45 [2020-10-28 17:28:22,226 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:28:22,361 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-28 17:28:22,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:28:22,367 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:28:22,408 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:28:22,408 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 41 [2020-10-28 17:28:22,408 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:28:22,408 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 42 [2020-10-28 17:28:22,409 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:28:22,409 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:28:22,409 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-10-28 17:28:22,409 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:28:22,410 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 37 [2020-10-28 17:28:22,410 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 17:28:22,550 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-28 17:28:22,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:28:22,555 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:28:22,580 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:28:22,580 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-10-28 17:28:22,580 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:28:22,580 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 25 [2020-10-28 17:28:22,580 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:28:22,581 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:28:22,581 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-10-28 17:28:22,581 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:28:22,581 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 29 [2020-10-28 17:28:22,581 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 17:28:22,729 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-28 17:28:22,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:28:22,735 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:28:22,757 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:28:22,758 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-10-28 17:28:22,758 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:28:22,758 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-10-28 17:28:22,759 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:28:22,759 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:28:22,759 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-28 17:28:22,760 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:28:22,760 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-10-28 17:28:22,760 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 17:28:22,894 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-28 17:28:22,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:28:22,898 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:28:22,907 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:28:22,907 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-28 17:28:22,908 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:28:22,908 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-28 17:28:22,908 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:28:22,908 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:28:22,909 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-28 17:28:22,909 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:28:22,909 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-10-28 17:28:22,910 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 17:28:23,061 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-28 17:28:23,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:28:23,064 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:28:23,066 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:28:23,066 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-28 17:28:23,066 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:28:23,067 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-28 17:28:23,067 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:28:23,067 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:28:23,067 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-28 17:28:23,068 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:28:23,068 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-28 17:28:23,068 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 17:28:23,283 INFO L134 CoverageAnalysis]: Checked inductivity of 1344 backedges. 0 proven. 672 refuted. 0 times theorem prover too weak. 672 trivial. 0 not checked. [2020-10-28 17:28:23,283 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1542952835] [2020-10-28 17:28:23,283 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-28 17:28:23,283 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [48] total 48 [2020-10-28 17:28:23,284 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1574673913] [2020-10-28 17:28:23,284 INFO L461 AbstractCegarLoop]: Interpolant automaton has 48 states [2020-10-28 17:28:23,284 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 17:28:23,285 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 48 interpolants. [2020-10-28 17:28:23,285 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=93, Invalid=2163, Unknown=0, NotChecked=0, Total=2256 [2020-10-28 17:28:23,285 INFO L87 Difference]: Start difference. First operand 80 states and 81 transitions. Second operand 48 states. [2020-10-28 17:28:29,735 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 17:28:29,735 INFO L93 Difference]: Finished difference Result 88 states and 89 transitions. [2020-10-28 17:28:29,737 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states. [2020-10-28 17:28:29,737 INFO L78 Accepts]: Start accepts. Automaton has 48 states. Word has length 141 [2020-10-28 17:28:29,738 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 17:28:29,739 INFO L225 Difference]: With dead ends: 88 [2020-10-28 17:28:29,739 INFO L226 Difference]: Without dead ends: 83 [2020-10-28 17:28:29,741 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 138 GetRequests, 47 SyntacticMatches, 0 SemanticMatches, 91 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 990 ImplicationChecksByTransitivity, 5.6s TimeCoverageRelationStatistics Valid=273, Invalid=8283, Unknown=0, NotChecked=0, Total=8556 [2020-10-28 17:28:29,741 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 83 states. [2020-10-28 17:28:29,745 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 83 to 83. [2020-10-28 17:28:29,745 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 83 states. [2020-10-28 17:28:29,746 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 83 states to 83 states and 84 transitions. [2020-10-28 17:28:29,746 INFO L78 Accepts]: Start accepts. Automaton has 83 states and 84 transitions. Word has length 141 [2020-10-28 17:28:29,747 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 17:28:29,747 INFO L481 AbstractCegarLoop]: Abstraction has 83 states and 84 transitions. [2020-10-28 17:28:29,747 INFO L482 AbstractCegarLoop]: Interpolant automaton has 48 states. [2020-10-28 17:28:29,747 INFO L276 IsEmpty]: Start isEmpty. Operand 83 states and 84 transitions. [2020-10-28 17:28:29,753 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2020-10-28 17:28:29,753 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 17:28:29,753 INFO L422 BasicCegarLoop]: trace histogram [23, 23, 22, 22, 22, 22, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-28 17:28:29,753 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2020-10-28 17:28:29,753 INFO L429 AbstractCegarLoop]: === Iteration 23 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 17:28:29,754 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 17:28:29,754 INFO L82 PathProgramCache]: Analyzing trace with hash 1489069125, now seen corresponding path program 22 times [2020-10-28 17:28:29,754 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 17:28:29,755 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2118844483] [2020-10-28 17:28:29,755 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 17:28:29,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:28:29,830 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:28:33,353 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:28:33,353 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 201 [2020-10-28 17:28:33,353 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:28:33,353 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3552 [2020-10-28 17:28:33,353 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:28:33,354 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:28:33,354 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 48 [2020-10-28 17:28:33,354 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 126 [2020-10-28 17:28:33,354 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 71 [2020-10-28 17:28:33,354 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:28:33,427 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 17:28:33,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:28:33,430 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:28:33,432 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:28:33,433 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 17:28:33,433 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:28:33,433 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-28 17:28:33,433 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:28:33,433 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:28:33,433 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 17:28:33,433 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:28:33,433 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 17:28:33,434 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:28:33,435 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-28 17:28:33,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:28:33,475 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:28:36,528 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:28:36,528 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 185 [2020-10-28 17:28:36,528 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:28:36,528 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3070 [2020-10-28 17:28:36,528 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:28:36,528 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:28:36,528 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 47 [2020-10-28 17:28:36,529 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:28:36,529 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 181 [2020-10-28 17:28:36,529 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:28:36,573 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-28 17:28:36,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:28:36,619 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:28:39,333 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:28:39,333 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 177 [2020-10-28 17:28:39,334 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:28:39,334 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2733 [2020-10-28 17:28:39,334 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:28:39,334 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:28:39,334 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 45 [2020-10-28 17:28:39,334 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:28:39,334 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 173 [2020-10-28 17:28:39,334 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:28:39,382 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-28 17:28:39,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:28:39,440 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:28:41,813 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:28:41,813 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 169 [2020-10-28 17:28:41,813 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:28:41,813 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2398 [2020-10-28 17:28:41,813 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:28:41,814 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:28:41,814 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 43 [2020-10-28 17:28:41,814 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:28:41,814 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 165 [2020-10-28 17:28:41,814 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:28:41,872 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-28 17:28:41,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:28:41,907 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:28:43,851 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:28:43,852 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 161 [2020-10-28 17:28:43,852 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:28:43,852 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1959 [2020-10-28 17:28:43,852 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:28:43,852 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:28:43,852 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 41 [2020-10-28 17:28:43,852 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:28:43,853 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 157 [2020-10-28 17:28:43,853 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:28:43,908 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-28 17:28:43,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:28:43,944 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:28:45,591 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:28:45,591 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 153 [2020-10-28 17:28:45,591 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:28:45,591 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1660 [2020-10-28 17:28:45,592 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:28:45,592 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:28:45,592 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 39 [2020-10-28 17:28:45,592 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:28:45,592 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 149 [2020-10-28 17:28:45,592 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:28:45,657 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-28 17:28:45,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:28:45,687 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:28:47,087 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:28:47,087 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 145 [2020-10-28 17:28:47,088 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:28:47,088 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1412 [2020-10-28 17:28:47,088 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:28:47,088 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:28:47,088 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 37 [2020-10-28 17:28:47,088 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:28:47,088 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 141 [2020-10-28 17:28:47,088 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:28:47,156 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-28 17:28:47,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:28:47,183 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:28:48,353 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:28:48,353 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 137 [2020-10-28 17:28:48,353 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:28:48,353 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1180 [2020-10-28 17:28:48,353 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:28:48,354 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:28:48,354 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 35 [2020-10-28 17:28:48,354 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:28:48,354 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 133 [2020-10-28 17:28:48,354 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:28:48,429 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-28 17:28:48,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:28:48,455 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:28:49,436 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:28:49,436 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 129 [2020-10-28 17:28:49,436 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:28:49,436 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 991 [2020-10-28 17:28:49,436 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:28:49,437 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:28:49,437 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 33 [2020-10-28 17:28:49,437 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:28:49,437 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 125 [2020-10-28 17:28:49,437 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:28:49,519 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-28 17:28:49,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:28:49,541 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:28:50,349 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:28:50,349 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 121 [2020-10-28 17:28:50,350 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:28:50,350 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 816 [2020-10-28 17:28:50,350 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:28:50,350 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:28:50,350 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 31 [2020-10-28 17:28:50,350 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:28:50,350 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 117 [2020-10-28 17:28:50,351 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:28:50,438 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-28 17:28:50,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:28:50,459 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:28:51,116 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:28:51,117 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 113 [2020-10-28 17:28:51,117 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:28:51,117 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 666 [2020-10-28 17:28:51,117 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:28:51,117 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:28:51,117 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 29 [2020-10-28 17:28:51,118 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:28:51,118 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 109 [2020-10-28 17:28:51,118 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:28:51,211 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-28 17:28:51,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:28:51,230 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:28:51,745 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:28:51,746 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 105 [2020-10-28 17:28:51,746 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:28:51,746 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 522 [2020-10-28 17:28:51,746 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:28:51,746 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:28:51,746 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 27 [2020-10-28 17:28:51,747 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:28:51,747 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 101 [2020-10-28 17:28:51,747 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:28:51,846 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-28 17:28:51,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:28:51,862 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:28:52,280 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:28:52,280 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 97 [2020-10-28 17:28:52,280 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:28:52,281 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 424 [2020-10-28 17:28:52,281 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:28:52,281 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:28:52,281 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 25 [2020-10-28 17:28:52,281 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:28:52,281 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 93 [2020-10-28 17:28:52,282 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:28:52,387 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-28 17:28:52,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:28:52,407 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:28:52,820 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:28:52,820 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 89 [2020-10-28 17:28:52,820 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:28:52,820 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 420 [2020-10-28 17:28:52,821 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:28:52,821 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:28:52,821 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 23 [2020-10-28 17:28:52,821 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:28:52,821 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 85 [2020-10-28 17:28:52,821 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:28:52,932 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-28 17:28:52,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:28:52,945 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:28:53,190 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:28:53,191 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 81 [2020-10-28 17:28:53,191 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:28:53,191 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 249 [2020-10-28 17:28:53,191 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:28:53,191 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:28:53,191 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 21 [2020-10-28 17:28:53,192 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:28:53,192 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 77 [2020-10-28 17:28:53,192 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:28:53,308 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-28 17:28:53,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:28:53,319 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:28:53,496 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:28:53,497 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 73 [2020-10-28 17:28:53,497 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:28:53,497 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 180 [2020-10-28 17:28:53,497 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:28:53,497 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:28:53,497 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 19 [2020-10-28 17:28:53,498 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:28:53,498 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 69 [2020-10-28 17:28:53,498 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:28:53,621 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-28 17:28:53,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:28:53,632 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:28:53,761 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:28:53,761 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 65 [2020-10-28 17:28:53,762 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:28:53,762 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 132 [2020-10-28 17:28:53,762 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:28:53,762 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:28:53,762 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 17 [2020-10-28 17:28:53,763 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:28:53,763 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 61 [2020-10-28 17:28:53,763 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 17:28:53,896 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-28 17:28:53,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:28:53,905 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:28:53,999 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:28:54,000 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 57 [2020-10-28 17:28:54,000 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:28:54,000 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 97 [2020-10-28 17:28:54,000 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:28:54,001 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:28:54,001 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-10-28 17:28:54,001 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:28:54,001 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 53 [2020-10-28 17:28:54,001 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:28:54,144 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-28 17:28:54,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:28:54,151 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:28:54,212 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:28:54,213 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 49 [2020-10-28 17:28:54,213 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:28:54,213 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 63 [2020-10-28 17:28:54,213 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:28:54,214 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:28:54,214 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-10-28 17:28:54,214 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:28:54,214 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 45 [2020-10-28 17:28:54,214 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:28:54,357 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-28 17:28:54,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:28:54,363 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:28:54,402 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:28:54,402 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 41 [2020-10-28 17:28:54,403 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:28:54,403 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 41 [2020-10-28 17:28:54,403 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:28:54,403 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:28:54,403 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-10-28 17:28:54,404 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:28:54,404 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 37 [2020-10-28 17:28:54,404 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 17:28:54,552 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-28 17:28:54,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:28:54,557 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:28:54,581 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:28:54,581 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-10-28 17:28:54,581 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:28:54,582 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 25 [2020-10-28 17:28:54,582 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:28:54,582 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:28:54,582 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-10-28 17:28:54,582 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:28:54,583 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 29 [2020-10-28 17:28:54,583 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 17:28:54,736 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-28 17:28:54,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:28:54,741 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:28:54,754 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:28:54,755 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-10-28 17:28:54,755 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:28:54,755 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-28 17:28:54,755 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:28:54,756 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:28:54,756 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-28 17:28:54,756 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:28:54,756 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-10-28 17:28:54,756 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 17:28:54,913 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-28 17:28:54,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:28:54,916 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:28:54,922 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:28:54,923 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-28 17:28:54,923 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:28:54,923 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-28 17:28:54,923 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:28:54,924 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:28:54,924 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-28 17:28:54,924 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:28:54,924 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-10-28 17:28:54,924 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 17:28:55,089 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-28 17:28:55,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:28:55,092 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:28:55,094 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:28:55,095 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-28 17:28:55,095 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:28:55,095 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-28 17:28:55,095 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:28:55,096 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:28:55,096 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-28 17:28:55,096 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:28:55,096 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-28 17:28:55,096 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 17:28:55,329 INFO L134 CoverageAnalysis]: Checked inductivity of 1474 backedges. 0 proven. 737 refuted. 0 times theorem prover too weak. 737 trivial. 0 not checked. [2020-10-28 17:28:55,330 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2118844483] [2020-10-28 17:28:55,330 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-28 17:28:55,330 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [50] total 50 [2020-10-28 17:28:55,330 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2008471653] [2020-10-28 17:28:55,331 INFO L461 AbstractCegarLoop]: Interpolant automaton has 50 states [2020-10-28 17:28:55,331 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 17:28:55,331 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 50 interpolants. [2020-10-28 17:28:55,332 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=97, Invalid=2353, Unknown=0, NotChecked=0, Total=2450 [2020-10-28 17:28:55,332 INFO L87 Difference]: Start difference. First operand 83 states and 84 transitions. Second operand 50 states. [2020-10-28 17:29:02,358 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 17:29:02,358 INFO L93 Difference]: Finished difference Result 91 states and 92 transitions. [2020-10-28 17:29:02,360 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 50 states. [2020-10-28 17:29:02,361 INFO L78 Accepts]: Start accepts. Automaton has 50 states. Word has length 147 [2020-10-28 17:29:02,361 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 17:29:02,362 INFO L225 Difference]: With dead ends: 91 [2020-10-28 17:29:02,362 INFO L226 Difference]: Without dead ends: 86 [2020-10-28 17:29:02,363 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 144 GetRequests, 49 SyntacticMatches, 0 SemanticMatches, 95 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1081 ImplicationChecksByTransitivity, 6.0s TimeCoverageRelationStatistics Valid=285, Invalid=9027, Unknown=0, NotChecked=0, Total=9312 [2020-10-28 17:29:02,364 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 86 states. [2020-10-28 17:29:02,368 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 86 to 86. [2020-10-28 17:29:02,368 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 86 states. [2020-10-28 17:29:02,369 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 86 states to 86 states and 87 transitions. [2020-10-28 17:29:02,369 INFO L78 Accepts]: Start accepts. Automaton has 86 states and 87 transitions. Word has length 147 [2020-10-28 17:29:02,370 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 17:29:02,370 INFO L481 AbstractCegarLoop]: Abstraction has 86 states and 87 transitions. [2020-10-28 17:29:02,370 INFO L482 AbstractCegarLoop]: Interpolant automaton has 50 states. [2020-10-28 17:29:02,370 INFO L276 IsEmpty]: Start isEmpty. Operand 86 states and 87 transitions. [2020-10-28 17:29:02,371 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2020-10-28 17:29:02,371 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 17:29:02,371 INFO L422 BasicCegarLoop]: trace histogram [24, 24, 23, 23, 23, 23, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-28 17:29:02,371 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2020-10-28 17:29:02,371 INFO L429 AbstractCegarLoop]: === Iteration 24 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 17:29:02,372 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 17:29:02,372 INFO L82 PathProgramCache]: Analyzing trace with hash 555515279, now seen corresponding path program 23 times [2020-10-28 17:29:02,372 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 17:29:02,372 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1912052721] [2020-10-28 17:29:02,372 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 17:29:02,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:29:02,441 FATAL L256 erpolLogProxyWrapper]: Now shrinking...